AMERICAN ELECTRIC POWER CO INC. AEP Cash Flow

American electric power co inc. (AEP)

CashFlow / TTM

Mar'20	Dec'19	Sep'19	Jun'19	Mar'19	Dec'18	Sep'18	Jun'18	Mar'18	Dec'17	Sep'17	Jun'17	Mar'17	Dec'16	Sep'16	Jun'16	Mar'16	Dec'15	Sep'15	Jun'15	Mar'15	Dec'14	Sep'14	Jun'14	Mar'14	Dec'13	Sep'13	Jun'13	Mar'13	Dec'12	Sep'12	Jun'12	Mar'12	Dec'11	Sep'11	Jun'11	Mar'11	Dec'10	Sep'10	Jun'10	Mar'10	Dec'09	Sep'09	Jun'09	Mar'09
Operating Activities
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
1,845	1,919	2,131	1,977	2,048	1,931	1,968	1,945	1,791	1,928	1,902	581	709	618	713	1,997	1,924	2,052	1,773	1,748	1,707	1,638	1,793	1,733	1,681	1,484	1,158	1,212	1,236	1,262	1,552	1,994	1,984	1,949	1,816	1,443	1,227	1,218	1,279	1,168	1,348	1,365	0	0	0
Income from Discontinued Operations
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income (Loss) from Continuing Operations
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1,768	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization
2,580	2,514	2,464	2,422	2,352	2,286	2,206	2,122	2,055	1,997	1,898	1,918	1,947	1,962	2,031	2,027	2,011	2,009	2,007	1,956	1,902	1,897	1,851	1,814	1,814	1,743	1,739	1,762	1,779	1,782	1,750	1,725	1,675	1,655	1,662	1,641	1,636	1,641	1,634	1,631	1,623	1,597	0	0	0
Deferred Income Taxes
-6	-17	77	-80	33	104	203	627	852	901	737	-178	-244	-50	232	910	900	808	1,012	909	808	868	512	752	762	709	626	586	621	636	622	686	725	794	1,169	1,122	1,018	809	986	1,096	1,148	1,244	0	0	0
Gain on Settlement with BOA and Enron
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	51	51	51	51	0	0	0	0	-	-	-	-
Settlement of Litigation with BOA and Enron
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	211	211	211	211	0	0	0	0	-	-	-	-
Asset Impairments and Other Related Charges
-	-	-	-	-	-	-	-	-	-	-	-	-	2,267	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Carrying Costs Income
-	-	-	-	-	-	-	-	-	-	18	17	18	16	17	17	19	23	29	34	35	33	32	33	32	30	31	34	37	53	112	392	398	393	342	69	71	70	65	59	52	47	0	0	0
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
170	168	162	150	130	132	123	113	103	93	89	94	102	113	121	128	133	131	125	119	110	102	96	88	80	73	74	78	85	93	99	102	101	98	86	77	73	77	83	89	122	82	0	0	0
Mark-to-Market of Risk Management Contracts
37	29	12	26	0	66	62	51	30	23	-38	-17	-135	-150	-91	-142	-94	-52	50	103	80	53	-24	-31	-10	-38	-16	-65	-81	-57	-23	16	-5	-37	-222	-87	-141	-30	68	-28	82	59	0	0	0
Amortization of Nuclear Fuel
87	89	102	108	111	113	106	108	121	129	123	127	123	128	153	152	147	145	131	130	144	144	144	147	135	131	137	135	136	136	129	129	137	137	134	142	143	139	135	107	80	63	0	0	0
Property Taxes
-58	-73	-22	-41	-71	-59	-16	-32	-48	-29	-15	-27	-29	-19	-11	-23	-52	-52	-14	-31	-22	-41	-6	-11	-38	-35	-9	-19	-21	-19	-7	-9	-12	-15	-5	-13	-20	-21	-4	-1	-6	-17	0	0	0
Deferred Fuel Over/Under-Recovery, Net
-115	-85	-72	-214	-283	-189	-214	-76	-3	-84	-44	39	56	65	-16	-110	-145	-137	-134	-91	-104	35	53	39	71	-62	-62	-62	-41	-157	-202	-159	-114	25	114	165	183	253	330	409	666	474	0	0	0
Gain on Sale of Merchant Generation Assets
-	-	-	-	-	-	-	-	-	226	226	226	226	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Recovery of Ohio Capacity Costs, Net
19	34	49	60	64	67	70	71	71	83	44	67	83	88	139	134	107	65	27	-15	-64	-113	-163	-211	-221	-214	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Refund of Global Settlement
-12	-16	-12	-8	-4	-5	-10	-15	-103	-98	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Assets
100	97	51	-35	-131	-119	-72	225	384	423	545	441	485	454	258	251	204	129	37	54	-67	-35	190	153	245	184	33	111	76	171	253	181	168	112	71	79	120	89	189	184	101	152	0	0	0
Change in Other Noncurrent Liabilities
-258	-116	-29	-109	63	129	117	234	270	181	179	145	58	15	-56	-104	-61	-89	-6	141	152	256	86	-49	-109	-169	-96	-12	71	7	201	255	183	307	244	220	316	202	591	393	189	244	0	0	0
Changes in Certain Components of Working Capital:
Accounts Receivable, Net
-157	-247	-323	-521	-163	-145	225	451	167	-28	-215	-209	-20	226	23	-68	-191	-200	58	21	-20	60	18	15	74	-5	8	162	227	16	-52	-147	-133	-107	49	11	68	866	793	790	474	-41	0	0	0
Fuel, Materials and Supplies
257	248	194	125	34	-20	-58	-58	-33	-17	-107	-157	-169	-60	220	293	266	38	-72	-41	-23	-100	-272	-390	-332	-122	-17	86	99	224	268	169	71	-176	-256	-296	-259	-221	-159	91	274	475	0	0	0
Margin Deposits
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	-	0	0	0
Accounts Payable
47	5	49	17	13	36	-12	58	63	-58	26	17	-51	164	77	7	-63	16	-48	-49	-62	-74	83	113	131	95	47	-17	-37	-60	-113	-57	56	-44	61	45	-79	-36	-126	-178	-78	8	0	0	0
Customer Deposits
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	-	0	0	0
Accrued Taxes, Net
122	138	40	110	150	153	154	36	-169	91	125	273	398	42	-204	-71	-82	120	-87	-25	49	0	383	213	138	85	26	52	135	174	105	299	259	193	-86	145	163	179	-412	-744	-493	-470	0	0	0
Accrued Interest
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	-	0	0	0
Other Current Assets
-94	-70	-59	-23	-31	-10	-49	0	54	60	115	57	53	-14	5	20	-19	26	10	-2	-6	20	-10	-12	30	-5	-20	6	4	3	4	-39	-20	-37	-51	2	-89	-73	-33	-18	80	73	0	0	0
Other Current Liabilities
-212	-189	-273	39	-6	149	179	-5	44	-181	-77	-73	-104	-28	-263	-75	-58	-49	171	110	165	237	167	8	-18	-66	-70	51	64	77	-4	-54	-23	29	85	-151	3	62	33	201	23	-243	0	0	0
Net Cash Flows from (Used for) Operating Activities
4,077	4,270	4,640	5,017	5,229	5,223	5,078	4,560	4,265	4,270	4,225	4,513	4,528	4,521	4,259	4,275	4,290	4,748	4,798	4,604	4,727	4,602	4,781	4,787	4,483	4,106	3,932	3,607	3,684	3,804	3,362	3,769	3,834	3,788	4,298	3,812	3,490	2,662	2,306	2,200	2,160	2,475	0	0	0
Investing Activities
Construction Expenditures
6,278	6,051	5,958	6,074	5,970	6,310	6,601	6,404	6,231	5,691	5,172	5,005	4,943	4,781	4,612	4,612	4,634	4,508	4,515	4,428	4,300	4,130	4,040	3,870	3,688	3,624	3,398	3,291	3,127	3,025	2,928	2,927	2,870	2,669	2,565	2,354	2,276	2,345	2,298	2,349	2,504	2,792	0	0	0
Change In Other Temporary Investments, Net
-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	0	-38	-	-12	-23	-18	31	27	73	42	11	-7	-12	31	27	35	4	-14	-8	5	24	13	4	-7	-4	-209	-16	0	0	0
Proceeds from Sale of Merchant Generation Assets
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	0	-	-	-	-	-	-	-	-	72	72	72	72	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-
Acquisitions of Assets
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	64	71	73	73	32	11	10	11	94	98	97	102	19	0	0	0	-	-	-	-	-	-	-	-
Purchases of Investment Securities
2,078	1,576	1,428	1,234	1,672	2,067	2,050	2,065	2,334	2,314	2,403	2,523	2,356	3,002	3,247	3,538	3,188	2,282	1,786	1,119	1,169	1,088	1,025	1,014	896	927	995	924	890	1,047	1,042	1,222	1,220	1,321	1,400	1,725	1,927	1,918	1,822	1,248	1,119	853	0	0	0
Sales of Investment Securities
2,017	1,494	1,333	1,171	1,613	2,010	1,998	2,005	2,277	2,256	2,339	2,469	2,307	2,957	3,208	3,479	3,127	2,218	1,723	1,064	1,112	1,031	969	956	838	858	924	856	822	988	984	1,184	1,229	1,379	1,434	1,680	1,828	1,817	1,701	1,186	1,063	748	0	0	0
Acquisitions of Nuclear Fuel
61	92	111	55	54	46	60	93	128	108	74	88	86	128	166	119	85	92	60	110	119	116	153	153	156	154	204	155	143	107	15	24	90	106	126	143	80	91	85	58	131	169	0	0	0
Proceeds from Sales of Assets
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	18	20	37	62	123	143	134	117	187	180	185	245	278	0	0	0
Acquisition of Cushion Gas from BOA
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	214	214	214	214	0	0	0	0	-	-	-	-
Other Investing Activities
9	0	-64	-63	-75	-61	-91	-59	-56	-41	-27	-32	-17	-15	-42	-67	-66	-97	-71	-57	-33	7	37	26	31	21	44	85	73	97	90	87	92	71	33	12	-16	14	27	45	56	40	0	0	0
Net Cash Flows from (Used for) Investing Activities
-7,327	-7,144	-7,022	-6,709	-6,008	-6,353	-6,622	-6,498	-6,360	-3,656	-3,340	-3,143	-3,132	-5,046	-4,752	-4,677	-4,690	-4,572	-4,575	-4,532	-4,445	-4,405	-4,377	-4,243	-4,027	-3,818	-3,630	-3,504	-3,371	-3,391	-3,204	-3,140	-3,069	-2,890	-2,915	-2,811	-2,706	-2,523	-2,394	-2,430	-2,619	-2,916	0	0	0
Financing Activities
Issuance of Common Stock, Net
106	65	55	55	55	73	74	63	44	12	0	3	22	34	47	56	63	81	78	100	89	73	86	72	84	84	80	74	67	83	86	93	92	92	98	100	98	93	87	82	1,706	1,728	0	0	0
Issuance of Long-term Debt
4,669	4,536	4,866	5,510	5,390	4,945	4,683	5,013	4,612	3,854	3,778	2,901	2,152	2,594	2,065	1,576	3,187	3,436	3,792	3,731	2,764	2,067	2,326	3,205	2,612	3,207	3,343	2,536	2,395	2,856	1,810	1,515	1,446	1,328	1,187	1,183	1,632	1,270	1,595	2,392	2,011	2,306	0	0	0
Issuance of Short-term Debt with Original Maturities greater than 90 Days
1,297	0	0	0	0	205	205	205	205	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	17	21	21	21	25	47	152	191	488	832	872	859	565	232	118	123	127	0	0	0
Change in Short-term Debt with Original Maturities less than 90 Days, Net
1,308	928	267	-313	-595	271	1,183	738	917	-74	-419	-208	315	913	696	955	366	-546	-500	-377	-477	589	64	-56	25	-221	3	331	258	-654	37	-247	-83	744	-163	-9	83	770	995	1,136	1,050	119	0	0	0
Repayments of Long-term Debt
1,300	1,220	1,846	2,170	2,458	2,782	2,620	2,528	2,389	3,087	2,914	2,910	2,714	1,794	1,574	1,456	2,481	2,397	2,372	2,298	1,646	1,777	1,853	2,730	2,110	2,598	3,020	2,229	2,162	1,643	1,049	889	1,227	1,665	2,059	1,915	2,132	1,993	1,611	1,785	1,361	816	0	0	0
Commercial Paper and Credit Facility Repayments
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	20	22	22	22	40	147	336	491	928	856	696	573	115	113	344	2,141	2,096	0	0	0
Make Whole Premium on Extinguishment of Long-term Debt
-	-	-	-	-	-	-	-	-	46	46	44	44	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Leases
71	70	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Lease Obligations
-	-	-	-	-	-	-	-	67	-	75	88	98	106	107	100	96	99	100	101	105	111	114	109	99	82	71	68	69	71	71	72	72	71	74	81	88	95	94	89	83	82	0	0	0
Dividends Paid on Common Stock
1,380	1,350	1,335	1,309	1,283	1,255	1,239	1,221	1,206	1,191	1,145	1,131	1,114	1,100	1,105	1,090	1,074	1,059	1,045	1,029	1,013	997	981	975	969	954	938	927	917	916	917	910	904	898	890	871	850	824	796	793	786	758	0	0	0
Dividends Paid on Cumulative Preferred Stock
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	2	3	3	3	3	3	3	3	3	0	0	0
Other Financing Activities
-67	-20	-5	-0	-1	-12	-15	-14	-2	-3	-13	-21	-31	-15	8	15	27	14	1	0	6	5	5	12	4	8	6	1	9	5	7	10	9	5	0	0	0	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Financing Activities
4,557	2,862	1,934	1,694	825	1,161	1,990	1,981	2,111	-604	-856	-1,522	-1,535	503	31	-42	-100	-661	-238	-66	-382	-150	-357	-471	-343	-449	-598	-283	-420	-355	-261	-749	-1,104	-971	-1,927	-1,422	-977	-335	301	710	567	520	0	0	0
Net Cash Flows from (Used for) Discontinued Operating Activities
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	69	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Discontinued Investing Activities
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	548	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Discontinued Financing Activities
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-127	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash
1,307	-11	-447	2	46	31	446	43	17	9	28	-153	-141	-23	25	43	-8	5	-15	5	-101	45	47	73	113	-161	-296	-180	-107	58	-103	-120	-339	-73	-544	-421	-193	-196	213	480	108	79	0	0	0
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts
1,066	1,022	997	974	920	939	875	871	840	858	825	865	855	848	855	852	833	857	828	847	827	838	829	849	863	882	935	942	919	931	882	902	915	900	919	913	937	958	0	0	0	-	-	-	-
Net Cash Paid (Received) for Income Taxes
6	6	26	-38	-24	-24	-22	53	86	-1	-9	-17	-66	29	36	48	125	120	123	152	125	117	118	18	-42	-55	-102	-50	-36	-82	-43	-175	-185	-118	-144	-427	-264	-268	0	0	0	-	-	-	-
Noncash Acquisitions Under Finance Leases
0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
-	-	-	-	-	-	-	-	70	-	64	57	52	86	119	127	166	150	152	177	144	135	209	184	178	182	70	61	67	63	61	59	50	54	74	77	101	225	0	0	0	-	-	-	-
Government Grants Included in Accounts Receivable as of December 31,
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	0	0	-	-	-	-
Construction Expenditures Included in Current Liabilities as of March 31,
1,368	1,341	1,257	1,085	1,166	1,120	1,421	1,672	1,615	1,330	1,044	901	829	858	766	752	756	741	623	670	701	559	644	627	579	492	477	481	489	439	401	343	410	380	342	354	271	267	0	0	0	-	-	-	-
Construction Expenditures Included in Noncurrent Liabilities as of March 31,
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	0	0	0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Assumption of Liabilities Related to Acquisitions
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	56	56	56	56	0	0	0	0	-	-	-	-	-	-	-	-
Acquisition of Nuclear Fuel Included in Current Liabilities as of March 31,
-	-	-	-	-	-	-	-	-	-	-	-	-	2	7	79	67	37	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Contribution of Assets by Noncontrolling Interest
-	-	-	-	-	84	84	84	84	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Expected Reimbursement for Spent Nuclear Fuel Dry Cask Storage
0	0	0	1	3	2	1	0	1	2	3	3	1	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Stockholders' Equity, Other
0	-	-	-	0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Acquisition of Nuclear Fuel Included in Current Liabilities at March 31,
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	-	-	-	-
AEP Texas Inc. [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
191	178	252	233	198	211	315	321	324	310	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation and Amortization
645	622	599	562	528	499	472	462	457	450	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Income Taxes
-20	-23	4	-101	-23	-16	-82	16	18	63	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
18	15	13	13	16	20	19	14	10	6	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mark-to-Market of Risk Management Contracts
-	-	-	-	-	-	-	-	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Property Taxes
0	-	-	0	0	-	-	0	0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Assets
42	34	-20	-25	25	35	76	65	49	49	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Liabilities
20	11	-15	28	32	44	68	24	10	8	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Receivable, Net
23	-3	26	-18	12	2	2	52	25	23	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Fuel, Materials and Supplies
7	1	3	5	6	6	-0	1	-2	-3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Payable
5	7	16	11	9	-20	-65	5	18	30	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Taxes, Net
-30	-11	-79	-16	26	-5	7	10	-2	-31	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Assets
2	0	-6	-1	-2	-0	3	-0	0	-0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Liabilities
10	10	-0	9	26	26	30	10	5	-15	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Operating Activities
810	823	736	721	699	651	633	614	629	632	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures
1,259	1,275	1,287	1,307	1,290	1,428	1,469	1,405	1,272	990	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances to Affiliates, Net
-0	199	-0	-19	-0	-103	-437	18	-0	103	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Investing Activities
-3	-2	-22	-23	-28	-35	-38	-31	-27	-18	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Investing Activities
-1,255	-1,472	-1,264	-1,264	-1,261	-1,289	-993	-1,392	-1,244	-1,075	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Capital Contributions from Parent
0	200	300	300	300	200	100	100	100	200	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances from Affiliates, Net
-207	-216	-3	239	38	216	77	-197	106	-169	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments of Long-term Debt
412	401	401	293	273	266	306	360	329	323	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Leases
5	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Lease Obligations
-	-	-	-	-	-	-	-	4	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Financing Activities
-0	-0	-0	1	1	1	1	-0	-0	-0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Financing Activities
444	646	517	536	555	640	361	781	621	452	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash
-0	-2	-9	-6	-6	2	1	2	6	10	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cash Paid for Interest, Net of Capitalized Amounts
147	148	148	150	140	145	125	134	128	134	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Paid (Received) for Income Taxes
-5	-11	50	44	2	7	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
12	11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
-	-	-	-	-	-	-	-	10	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures Included in Current Liabilities as of March 31,
204	225	250	249	269	243	336	417	429	325	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
AEP Transmission Co [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
453	439	419	390	336	315	302	272	297	270	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation and Amortization
191	176	164	154	143	133	123	112	102	95	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Income Taxes
90	91	59	68	97	98	155	187	212	271	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
89	84	83	80	67	70	64	55	53	49	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Property Taxes
-30	-35	-9	-9	-27	-32	-8	-22	-22	-22	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Assets
-9	-9	-7	-24	-14	-14	-15	-13	-11	-11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Liabilities
-9	-8	-4	-6	-4	17	19	28	43	27	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Receivable, Net
19	5	-8	3	-38	-36	-33	-15	1	30	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Fuel, Materials and Supplies
-6	-5	-1	1	4	5	0	5	6	8	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Payable
48	37	-6	-4	14	-7	5	29	20	23	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Taxes, Net
85	90	53	60	75	73	14	13	61	16	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Interest
3	3	3	4	-3	0	7	1	10	4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Assets
0	0	0	0	0	0	0	-0	4	4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Liabilities
-10	-11	-6	1	-26	-26	-28	-29	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Operating Activities
729	708	605	596	587	548	586	583	673	604	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures
1,536	1,410	1,314	1,332	1,319	1,526	1,634	1,647	1,694	1,513	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances to Affiliates, Net
54	-11	-2	-2	41	-49	-12	31	21	79	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Acquisitions of Assets
8	9	31	26	38	37	18	22	10	9	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Investing Activities
-8	-4	-11	-4	-0	-1	-6	-7	-7	-6	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Investing Activities
-1,591	-1,403	-1,331	-1,352	-1,398	-1,513	-1,633	-1,693	-1,719	-1,595	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Capital Contributions from Parent
185	0	82	287	599	664	758	571	301	361	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances from Affiliates, Net
74	91	8	-147	-59	29	-31	-79	127	11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Financing Activities
0	-	-	0	0	-	-	0	0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Financing Activities
862	694	725	755	811	964	1,046	1,110	1,046	990	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Increase (Decrease) in Cash and Cash Equivalents
0	0	0	0	0	0	0	0	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cash Paid for Interest, Net of Capitalized Amounts
98	90	84	78	84	80	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Paid (Received) for Income Taxes
2	1	31	7	-31	-30	-46	-60	-106	-107	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures Included in Current Liabilities as of March 31,
502	472	423	382	392	345	473	535	509	485	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Appalachian Power Co [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
287	306	371	354	376	367	372	371	346	331	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation and Amortization
476	466	457	444	432	428	423	420	415	407	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Income Taxes
-86	-126	-34	-101	-72	-16	-34	96	130	171	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Carrying Costs Income
-	-	-	-	-	1	1	1	1	1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
17	16	16	15	12	13	12	11	10	9	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mark-to-Market of Risk Management Contracts
1	-19	-12	9	-2	33	38	19	15	23	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Fuel Over/Under-Recovery, Net
-43	-57	-37	-104	-100	10	12	90	112	20	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Assets
50	38	30	-24	-42	-58	-69	-27	-14	-11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Liabilities
-35	-40	-38	-104	-63	-4	7	66	53	11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Receivable, Net
-13	-35	-55	-89	-67	-33	28	47	40	28	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Fuel, Materials and Supplies
89	93	74	42	1	-27	-61	-42	-48	-22	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Payable
-40	37	48	20	0	-13	9	7	28	37	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Taxes, Net
-9	-10	-23	-13	-17	-13	11	15	-4	-12	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Assets
-35	-15	-8	-4	-8	6	4	0	22	-0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Liabilities
-54	-45	-47	34	34	42	44	-18	-1	-10	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Operating Activities
565	661	727	788	897	846	868	860	820	880	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures
876	862	812	771	767	780	833	852	812	818	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances to Affiliates, Net
-194	-0	-0	-0	193	-0	-0	-0	-0	-0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Investing Activities
-10	-24	-23	-23	-21	-10	-13	-12	-18	-15	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Investing Activities
-671	-837	-788	-746	-938	-769	-820	-839	-794	-802	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of Long-term Debt
84	478	578	577	596	203	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances from Affiliates, Net
355	31	-58	-146	-245	19	29	48	63	106	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments of Long-term Debt
180	180	280	280	124	124	24	23	273	377	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Leases
6	6	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Lease Obligations
-	-	-	-	-	-	-	-	6	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends Paid on Common Stock
150	150	165	180	170	160	150	140	130	120	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Financing Activities
0	0	1	1	1	1	1	0	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Financing Activities
103	173	69	-34	51	-66	-47	-18	-25	-77	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash
-2	-3	8	7	9	10	0	2	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cash Paid for Interest, Net of Capitalized Amounts
208	190	198	182	173	182	181	182	183	183	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Paid (Received) for Income Taxes
55	63	19	2	-5	-13	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
-	-	-	-	-	-	-	-	4	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures Included in Current Liabilities as of March 31,
165	149	181	161	127	134	106	116	157	126	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Indiana Michigan Power Co [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
262	269	277	261	296	261	274	266	182	186	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation and Amortization
358	350	347	344	320	293	263	233	220	210	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Income Taxes
-55	-52	-100	-93	-70	-42	96	159	165	200	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferral of Incremental Nuclear Refueling Outage Expenses, Net
-3	26	-4	-18	-26	-29	-6	26	20	-8	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Carrying Costs Income
-	-	-	-	-	-	-	0	11	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
15	19	20	20	16	11	11	10	10	11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mark-to-Market of Risk Management Contracts
0	0	5	4	2	4	-4	-4	1	2	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Amortization of Nuclear Fuel
87	89	102	108	111	113	106	108	121	129	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Fuel Over/Under-Recovery, Net
-3	24	9	-15	-31	-39	-21	3	2	-13	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Assets
-9	-8	-21	-1	12	36	80	88	94	101	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Liabilities
38	33	39	24	43	72	42	47	57	37	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Receivable, Net
-28	-35	-48	-58	-17	-4	13	52	0	1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Fuel, Materials and Supplies
45	22	14	10	0	11	4	-2	3	7	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Payable
-14	3	13	-52	-18	-14	-33	-3	41	17	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Taxes, Net
47	48	-1	24	58	41	6	-28	-1	-16	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Assets
-28	-11	-4	-9	-14	-1	-11	0	12	-14	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Liabilities
-41	-13	-44	-32	-17	-10	-6	7	8	-5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Operating Activities
689	685	685	660	783	725	708	617	634	661	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures
578	585	565	577	568	568	613	628	637	648	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances to Affiliates, Net
0	0	-59	-79	0	0	59	79	0	-0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Purchases of Investment Securities
2,026	1,531	1,391	1,223	1,669	2,064	2,047	2,051	2,320	2,300	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Sales of Investment Securities
1,973	1,473	1,330	1,171	1,613	2,010	1,998	2,005	2,277	2,256	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Acquisitions of Nuclear Fuel
61	92	111	55	54	46	60	93	128	108	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Investing Activities
-12	-16	-16	-15	-19	-14	-11	-14	-11	-9	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Investing Activities
-680	-720	-663	-590	-661	-654	-771	-833	-797	-790	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Proceeds from Issuance of Long-term Debt
-	-	-	-	-	-	-	-	-	530	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances from Affiliates, Net
69	113	102	94	-279	-210	-177	-43	27	-3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments of Long-term Debt
114	117	102	580	882	884	889	419	180	260	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Leases
6	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Lease Obligations
-	-	-	-	-	-	-	-	11	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends Paid on Common Stock
81	80	79	97	111	124	136	129	127	125	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Financing Activities
0	0	0	-10	-9	-9	-8	1	1	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Financing Activities
-8	34	-21	-69	-121	-69	63	216	162	129	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Increase (Decrease) in Cash and Cash Equivalents
0	-0	0	0	1	1	0	0	-0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cash Paid for Interest, Net of Capitalized Amounts
112	111	111	116	109	116	107	100	101	94	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Paid (Received) for Income Taxes
6	3	99	84	29	32	-46	-56	-90	-89	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
-	-	-	-	-	-	-	-	7	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures Included in Current Liabilities as of March 31,
73	86	102	84	95	93	80	79	89	88	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Acquisition of Nuclear Fuel Included in Current Liabilities as of March 31,
-0	0	-8	53	4	4	11	-25	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Expected Reimbursement for Spent Nuclear Fuel Dry Cask Storage
-6	0	0	1	10	2	1	0	1	2	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Ohio Power Co [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
244	297	336	355	373	325	329	323	317	323	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation and Amortization
248	240	236	249	258	259	260	247	233	225	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Amortization Of Generation Deferrals
32	65	117	165	197	223	228	230	226	229	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Income Taxes
46	43	52	-14	-21	-36	-41	40	106	147	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Carrying Costs Income
1	1	0	0	1	1	2	2	2	3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
14	18	16	13	12	9	10	9	6	6	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mark-to-Market of Risk Management Contracts
-14	-4	-18	-25	-8	32	43	44	26	-13	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Property Taxes
-25	-33	-5	-12	-9	-12	-2	-5	-13	-17	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Refund of Global Settlement
-12	-16	-12	-8	-4	-5	-10	-15	-103	-98	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Reversal of a Regulatory Provision
0	56	56	56	56	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Assets
89	35	31	124	33	11	9	-121	-5	54	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Liabilities
-147	-93	-59	-40	30	53	34	30	25	15	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Receivable, Net
-23	-75	-111	-99	-36	-43	23	34	21	30	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Fuel, Materials and Supplies
23	16	17	16	12	11	7	7	11	11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Payable
59	0	5	-8	-15	-13	11	-21	24	11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Taxes, Net
11	38	-8	26	5	26	64	73	5	-9	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Assets
-6	-0	8	-4	-7	-8	-15	0	16	9	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Liabilities
-47	-55	13	63	35	49	1	-15	-0	-29	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Operating Activities
307	421	637	867	961	1,028	992	844	666	622	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures
833	799	758	798	756	725	743	656	627	567	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances to Affiliates, Net
-	-	-	-	-	-	-	0	200	-24	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Investing Activities
-57	-55	-22	-13	-20	-18	-21	-20	-12	-12	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Investing Activities
-776	-744	-735	-849	-535	-707	-722	-635	-815	-530	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of Long-term Debt
791	444	444	444	-0	392	392	392	393	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances from Affiliates, Net
-198	16	-225	-213	227	26	75	23	-18	87	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments of Long-term Debt
56	80	48	47	397	397	397	396	46	46	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Leases
4	3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Lease Obligations
-	-	-	-	-	-	-	-	4	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends Paid on Common Stock
81	85	85	197	250	337	337	225	177	130	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Financing Activities
1	1	1	1	0	0	0	0	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Financing Activities
452	294	83	-17	-423	-318	-269	-208	147	-91	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash
-16	-28	-14	1	2	2	0	0	-1	-0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cash Paid for Interest, Net of Capitalized Amounts
100	100	91	94	97	97	99	98	99	100	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Paid (Received) for Income Taxes
7	7	22	20	51	51	33	16	46	48	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
-	-	-	-	-	-	-	-	4	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures Included in Current Liabilities as of March 31,
126	125	132	111	118	98	97	102	111	87	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Public Service Co Of Oklahoma [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
121	137	141	101	96	83	90	76	60	72	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation and Amortization
170	169	168	172	170	164	153	142	133	130	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Income Taxes
-17	-18	-27	-33	-32	-31	17	64	92	124	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
3	2	2	1	0	0	-0	0	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mark-to-Market of Risk Management Contracts
2	6	3	3	1	3	13	15	2	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Property Taxes
0	-	0	0	0	-	0	0	0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Fuel Over/Under-Recovery, Net
-50	-43	-33	-36	-40	-57	-73	-54	-22	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Assets
2	-5	2	-3	-8	0	0	7	17	27	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Liabilities
6	1	2	0	11	17	20	20	12	4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Receivable, Net
-14	-15	-17	1	-0	-5	20	22	20	10	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Fuel, Materials and Supplies
13	1	3	1	-2	2	2	-4	-7	-13	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Payable
-8	7	5	23	5	17	14	3	6	-10	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Taxes, Net
3	3	-6	-4	16	13	19	6	23	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Assets
-1	0	3	2	5	0	-6	0	1	2	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Liabilities
-7	4	-7	6	12	6	17	32	24	3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Operating Activities
304	350	318	300	327	330	372	315	291	238	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures
317	291	276	268	256	240	225	234	244	266	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances to Affiliates, Net
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Investing Activities
-3	-2	-5	-5	-5	-7	-7	-6	-5	-4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Investing Activities
-313	-328	-365	-263	-250	-233	-218	-228	-239	-261	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of Long-term Debt
249	349	349	349	99	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances from Affiliates, Net
15	-105	-22	-95	-123	-44	-96	-23	15	97	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments of Long-term Debt
250	250	250	250	0	0	0	0	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Leases
3	3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Lease Obligations
-	-	-	-	-	-	-	-	0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends Paid on Common Stock
0	11	23	36	48	50	55	60	65	70	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Financing Activities
0	1	1	-1	1	0	0	0	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Financing Activities
9	-22	48	-37	-75	-97	-154	-86	-53	23	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Increase (Decrease) in Cash and Cash Equivalents
-0	-0	1	-0	0	0	-0	0	-0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cash Paid for Interest, Net of Capitalized Amounts
66	61	66	61	62	62	62	61	55	61	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Paid (Received) for Income Taxes
21	22	32	30	18	17	-24	-31	-70	-72	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
5	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
-	-	-	-	-	-	-	-	2	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures Included in Current Liabilities as of March 31,
61	46	40	27	23	33	32	19	26	23	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Southwestern Electric Power Co [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
149	162	158	136	167	152	152	147	133	137	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation and Amortization
254	249	250	247	244	239	235	230	224	217	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Income Taxes
-17	-11	-16	-9	-2	1	2	12	38	80	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
6	6	6	5	5	6	5	4	3	2	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Mark-to-Market of Risk Management Contracts
-2	-0	1	3	-1	-4	-9	-6	0	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Property Taxes
0	-	0	0	0	-	0	0	0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred Fuel Over/Under-Recovery, Net
-27	-16	-7	-5	-12	2	-1	-3	2	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Assets
0	-6	6	8	17	18	15	13	7	9	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Other Noncurrent Liabilities
4	2	-3	-0	31	42	62	61	35	4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Receivable, Net
-5	0	8	-5	-31	-53	0	32	28	32	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Fuel, Materials and Supplies
37	46	19	17	14	-3	24	17	26	16	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts Payable
-4	-28	18	23	-29	0	6	-20	19	10	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Taxes, Net
-4	-3	18	18	-0	2	15	28	89	45	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accrued Interest
0	-	-	-	0	-	-	-	0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Assets
2	8	-7	-9	-6	-15	-7	-0	-1	-5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Current Liabilities
-12	6	-1	29	12	16	4	20	-8	-14	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Operating Activities
356	339	396	430	438	504	504	454	493	444	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures
448	412	391	391	397	451	475	484	468	404	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances to Affiliates, Net
0	-81	-510	0	0	81	516	0	0	-167	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Investing Activities
-4	-1	0	0	-4	-2	-1	-0	-2	-3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Investing Activities
-443	-330	119	-390	-392	-528	-978	-471	-453	-220	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Proceeds from Issuance of Long-term Debt
-	-	-	-	-	1,065	1,015	444	559	114	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Short-term Debt with Original Maturities less than 90 Days, Net
30	18	-19	-25	-22	-22	5	16	22	22	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Change in Advances from Affiliates, Net
74	59	0	-64	-74	-118	-48	61	-19	118	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments of Long-term Debt
6	59	467	467	466	794	385	385	485	353	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Leases
11	11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Principal Payments for Finance Lease Obligations
-	-	-	-	-	-	-	-	11	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends Paid on Common Stock
18	37	42	62	63	65	87	95	102	110	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends Paid on Common Stock
2	3	4	4	4	4	14	13	13	13	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other Financing Activities
0	0	-2	-2	-3	-2	0	0	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Flows from (Used for) Financing Activities
66	-32	-497	-17	-25	47	474	17	-49	-232	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Increase (Decrease) in Cash and Cash Equivalents
-20	-22	18	21	21	22	0	0	-9	-8	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cash Paid for Interest, Net of Capitalized Amounts
111	111	118	123	122	125	117	117	117	124	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net Cash Paid (Received) for Income Taxes
8	8	13	8	19	18	8	-2	-75	-75	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
9	7	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncash Acquisitions Under Finance Leases
-	-	-	-	-	-	-	-	3	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Construction Expenditures Included in Current Liabilities as of March 31,
69	69	57	43	36	42	67	60	89	71	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Retained Earnings [Member]
Stockholders' Equity, Other
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Noncontrolling Interest [Member]
Stockholders' Equity, Other
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Additional Paid-in Capital [Member]
Stockholders' Equity, Other
-	-	-	-	-	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-