EXELON CORPORATION EXC Cash Flow

Exelon corporation (EXC)

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
Cash flows from operating activities
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
2,438	3,028	2,320	2,360	2,409	2,079	3,920	3,982	3,534	3,869	2,168	1,832	2,044	1,196	1,247	1,308	1,635	2,250	2,054	2,541	2,465	1,820	2,219	1,882	1,821	1,729	1,619	1,179	972	1,171	1,394	1,699	2,030	2,499	2,416	2,659	2,483	2,563	2,620	2,532	2,744	2,707	0	0	0
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, Amortization and Accretion, Net
5,698	5,780	5,853	5,893	5,930	5,971	5,939	5,836	5,654	5,427	5,566	5,771	5,787	5,576	5,066	4,426	4,102	3,987	3,942	3,900	3,908	3,868	3,791	3,732	3,670	3,779	4,014	4,156	4,320	4,079	3,523	3,097	2,540	2,316	2,390	2,602	2,777	2,943	2,921	2,803	2,697	2,601	0	0	0
Asset impairments
202	201	175	18	57	50	134	169	563	573	520	512	197	306	285	251	155	36	550	599	686	687	0	0	0	-	-	-	-	284	0	0	0	-	0	0	0	-	-	-	-	223	0	0	0
Gain on sales of assets and businesses
-	-	-	-	-	56	53	58	55	3	-84	-83	-53	-48	0	0	0	-	0	0	0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Business Combination, Bargain Purchase, Gain Recognized, Amount
-	-	-	-	-	-	-	-	-	233	233	226	226	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
249	681	207	178	93	-108	-709	-477	-561	-362	477	508	714	656	1,134	802	750	752	284	580	679	502	742	720	681	119	188	-80	-96	615	712	1,094	1,218	1,457	1,749	1,944	1,325	981	256	234	832	756	0	0	0
Unrealized Gain (Loss) on Derivatives
-59	-222	-323	-250	-66	-294	-69	-72	-363	-151	-73	-60	-178	-24	-96	-334	383	367	169	542	105	-716	-306	-334	103	445	456	309	143	604	446	296	-70	-291	-553	-299	-293	88	302	246	164	95	0	0	0
Net realized and unrealized gains on NDT funds
-296	663	143	181	73	-303	208	252	373	616	415	399	349	229	333	-19	-123	-131	-152	44	231	210	216	311	130	170	110	114	120	157	218	5	49	-14	-34	215	109	105	73	105	311	207	0	0	0
Other non-cash operating activities
759	613	787	1,333	1,498	1,131	2,135	664	606	728	-712	-692	-647	-1,333	-1,477	-1,586	-1,569	-1,109	-1,212	-1,160	-1,122	-1,054	-832	-615	-763	-718	-713	-981	-1,065	-1,364	-1,302	-1,351	-1,523	-770	-1,780	-1,265	-458	-609	-648	-785	-860	-652	0	0	0
Changes in assets and liabilities:
Accounts receivable
-478	243	-47	-158	619	565	821	876	628	470	-48	217	258	432	231	-73	-627	-240	341	113	-18	318	-47	180	633	97	-69	40	221	-243	-282	-471	-398	-57	57	3	219	232	273	281	-166	-234	0	0	0
Inventories
134	87	107	78	76	37	9	-11	14	72	101	105	26	-7	40	66	145	-4	-1	71	169	380	313	232	121	100	89	37	-23	-26	2	30	32	58	54	46	51	62	42	23	14	-51	0	0	0
Accounts payable and accrued expenses
-637	-425	-204	-31	238	551	287	80	-111	-388	-116	324	614	771	290	56	-224	-121	256	-133	-576	49	-195	109	583	-116	-58	-152	2	-632	-671	-831	-904	-254	125	225	249	472	284	-24	-15	-254	0	0	0
Option premiums (paid) received, net
73	29	-6	-41	10	43	43	0	-7	-28	7	64	89	66	0	0	0	-	0	0	0	-	-23	5	18	36	30	16	17	114	184	149	122	3	-36	71	171	124	102	16	-94	40	0	0	0
Collateral (posted) received, net
-358	-438	-394	-310	195	82	164	96	-262	-158	74	48	615	931	989	1,716	810	347	-2,219	-2,984	-2,653	-1,719	327	132	276	-215	346	575	391	-135	-871	-601	-146	344	1,251	477	782	155	-105	222	111	-196	0	0	0
Income taxes
-261	-64	317	362	395	340	298	370	335	299	216	164	579	576	324	320	-30	97	85	120	14	-143	92	162	268	883	942	990	998	544	425	60	-63	492	-321	-513	-327	-543	457	809	327	-29	0	0	0
Pension and non-pension postretirement benefit contributions
611	408	398	393	380	383	423	425	429	405	458	464	465	397	355	459	472	502	531	419	414	617	578	637	627	422	691	656	674	462	402	361	327	2,360	2,308	2,929	2,949	959	872	639	649	588	0	0	0
Other assets and liabilities
1,383	1,482	1,405	1,494	1,057	965	779	646	745	675	587	466	703	589	602	824	448	387	-57	33	129	157	373	285	383	-128	-19	-138	13	368	354	148	-72	24	107	296	103	56	58	-75	35	113	0	0	0
Net cash flows provided by operating activities
6,695	6,659	7,368	7,673	8,186	8,644	8,482	8,454	7,908	7,480	6,771	6,803	8,062	8,461	9,305	8,200	7,599	7,616	0	0	0	-	-	5,756	5,649	6,343	5,951	5,756	5,996	6,131	6,510	6,553	6,054	4,853	4,049	3,888	3,176	5,244	5,577	5,416	6,005	6,094	0	0	0
Cash flows from investing activities
Payments to Acquire Property, Plant, and Equipment
7,391	7,248	7,356	7,359	7,587	7,594	7,525	7,546	7,455	7,584	7,741	7,909	8,360	8,553	8,549	8,653	8,042	7,624	7,406	7,036	6,644	6,077	5,622	5,378	5,165	5,395	5,514	5,507	5,740	5,789	5,232	4,857	4,388	4,042	3,916	3,727	3,598	3,326	3,403	3,413	3,439	3,273	0	0	0
Increase (Decrease) in Restricted Cash
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-61	-84	-90	-66	23	67	90	104	171	105	71	43	19	-3	38	34	-491	16	19	3	536	-427	-217	-423	-430	2	-226	-35	0	0	0
Proceeds from NDT fund sales
7,521	10,051	10,826	11,860	11,286	8,762	7,376	6,454	7,267	7,845	8,430	9,732	9,023	9,496	10,258	8,558	7,454	6,895	6,483	6,491	7,252	7,396	6,337	6,988	5,365	4,217	4,347	3,342	4,262	7,265	9,281	9,853	8,624	6,139	4,128	3,622	4,050	3,764	-11,721	-4,059	2,151	4,292	0	0	0
Investment in NDT funds
7,655	10,087	10,881	11,920	11,415	8,997	7,622	6,698	7,528	8,113	8,689	9,983	9,274	9,738	10,503	8,804	7,697	7,147	6,738	6,750	7,420	7,551	6,482	7,123	5,599	4,450	4,579	3,565	4,486	7,483	9,461	10,043	8,811	6,332	4,336	3,782	4,188	3,907	-11,554	-3,851	2,388	4,531	0	0	0
Proceeds from sales of investments
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	28	32	18	5	6	0	0	0	-	-	-	-	-	-	-	-
Reduction of restricted cash from deconsolidation of business
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	964	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Businesses, Gross
-	-	-	-	-	-	-	-	-	208	235	493	490	6,923	6,908	6,654	6,670	40	347	348	401	386	0	0	0	-	-	-	-	21	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-
Proceeds from sales of assets and businesses
45	53	18	16	20	91	90	97	276	219	0	0	0	-	-	-	-	147	1,204	1,832	1,843	1,719	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Proceeds from termination of direct financing lease investment
-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	0	0	-	0	0	0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Purchases of investments
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	13	17	9	3	4	0	0	0	-	-	-	-	-	-	-	-
Other investing activities
28	-12	-50	-53	-87	-58	12	3	22	43	45	113	169	153	122	91	119	119	106	108	36	88	42	8	-18	-112	-160	-211	-230	-136	-35	20	49	-20	-39	-37	-42	-39	-16	-40	-22	-6	0	0	0
Net cash flows used in investing activities
-7,549	-7,260	-7,440	-7,447	-7,763	-7,834	-7,837	-7,836	-7,545	-7,971	-7,974	-8,554	-9,185	-15,450	-15,352	-15,153	-14,619	-7,822	0	0	0	-	-	-5,032	-4,934	-5,394	-5,204	-5,157	-5,407	-4,576	-3,914	-4,497	-4,064	-4,603	-5,888	-4,310	-4,364	-3,894	-3,111	-3,570	-3,415	-3,458	0	0	0
Cash flows from financing activities
Changes in short-term borrowings
350	781	310	-68	-524	-338	91	-483	-256	-261	91	867	-1,279	-353	-1,244	-892	1,788	0	-6	-199	-779	0	363	-37	737	332	147	286	-105	-197	-440	200	252	161	397	-149	-206	-155	-75	244	49	-56	0	0	0
Proceeds from short-term borrowings with maturities greater than 90 days
500	0	0	0	125	126	126	171	62	621	666	622	677	240	0	0	0	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments on short-term borrowings with maturities greater than 90 days
-	-	-	-	-	1	91	191	201	700	620	657	962	462	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of long-term debt
4,201	1,951	2,027	2,477	2,387	3,115	3,518	3,977	3,837	3,470	2,844	2,523	5,328	4,716	5,288	3,976	5,654	6,709	6,160	7,270	3,719	3,463	3,236	3,646	2,856	2,055	2,500	1,686	2,176	2,027	1,558	1,450	600	1,199	1,199	1,997	1,997	1,398	1,398	1,502	1,738	1,987	0	0	0
Retirement of long-term debt
1,967	1,287	950	1,051	897	1,786	2,242	2,750	3,666	2,490	2,720	2,768	1,885	1,936	1,886	1,196	2,223	2,687	2,076	2,062	975	1,545	1,647	2,164	2,738	1,589	1,570	1,112	695	1,145	1,517	1,436	1,239	789	4	215	828	828	1,085	2,133	1,710	1,773	0	0	0
Retirement of long-term debt of variable interest entity
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	806	0	0	0	-	-	-	0
Retirement of long-term debt to financing trust
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	709	0	0	0
Dividends paid on common stock
1,429	1,408	1,388	1,370	1,351	1,332	1,314	1,295	1,266	1,236	1,214	1,191	1,182	1,166	1,159	1,150	1,123	1,105	1,085	1,069	1,068	1,065	1,067	1,066	1,065	1,249	1,471	1,659	1,816	1,716	1,575	1,471	1,395	1,393	1,391	1,390	1,390	1,389	1,389	1,387	1,386	1,385	0	0	0
Dividends paid to former Constellation shareholders
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-
Proceeds from employee stock plans
91	112	132	153	144	105	156	134	150	150	80	81	58	55	44	33	33	32	34	33	36	35	32	33	42	47	51	62	72	72	73	65	42	38	40	41	45	48	48	45	44	42	0	0	0
Other financing activities
-89	-82	-77	-92	-92	-108	-113	-110	-109	-83	-184	-104	-95	-85	1	-44	-77	-99	-85	-154	-166	-178	-175	-140	-102	-119	-193	-163	-155	-111	-15	-26	-16	-62	-66	-64	-63	-16	-20	-6	-8	-3	0	0	0
Net cash flows provided by (used in) financing activities
1,532	-58	-71	-76	-208	-219	131	-401	-153	767	641	705	842	1,191	679	2,586	6,155	4,830	0	0	0	-	-	-353	-573	-826	-803	-957	-538	-1,085	-1,967	-1,269	-1,756	-846	175	-184	-849	-1,748	-2,105	-2,516	-2,215	-1,897	0	0	0
Increase (Decrease) in cash, cash equivalents and restricted cash
678	-659	-143	150	215	591	776	217	210	276	-562	-1,046	-281	-5,798	-5,368	-4,367	-865	4,624	4,502	4,652	911	269	1,119	371	142	123	-56	-358	51	470	629	787	234	-596	-1,664	-606	-2,037	-398	361	-670	375	739	0	0	0
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase in PPE related to ARO update
667	968	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Exelon Generation Co L L C [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
634	1,217	560	615	679	443	2,957	3,002	2,585	2,798	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation, Amortization and Accretion, Net
2,935	3,063	3,184	3,260	3,346	3,415	3,433	3,376	3,236	3,056	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Asset impairments
202	201	175	18	57	50	74	106	500	510	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Gain on sales of assets and businesses
-	-	-	-	-	48	47	52	51	2	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Business Combination, Bargain Purchase, Gain Recognized, Amount
-	-	-	-	-	-	-	-	-	233	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
-76	361	28	-151	-275	-451	-2,122	-2,005	-2,199	-2,023	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Unrealized Gain (Loss) on Derivatives
-68	-228	-336	-263	-76	-307	-80	-90	-380	-167	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net realized and unrealized gains on NDT funds
-296	663	143	181	73	-303	208	252	373	616	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other non-cash operating activities
171	-124	16	433	253	298	431	148	57	112	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts receivable
-404	186	90	145	356	359	260	213	299	320	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-13	-52	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-	-	-	-	-	-	-	-	-45	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Inventories
111	47	38	14	31	12	-4	-10	-12	29	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts payable and accrued expenses
-451	-248	7	141	282	376	200	59	-77	4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Option premiums (paid) received, net
73	29	-6	-41	10	43	43	0	-7	-28	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Collateral (posted) received, net
-416	-481	-456	-345	191	64	176	125	-241	-129	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income taxes
98	302	-86	70	-126	-193	562	653	656	496	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Pension and non-pension postretirement benefit contributions
266	175	170	168	155	139	160	161	163	148	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other assets and liabilities
464	467	394	297	203	158	119	198	141	152	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by operating activities
2,911	2,873	2,923	3,226	3,588	3,861	4,440	4,388	3,734	3,299	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Property, Plant, and Equipment
1,892	1,845	1,864	1,834	2,125	2,242	2,265	2,368	2,262	2,259	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Proceeds from NDT fund sales
7,521	10,051	10,826	11,860	11,286	8,762	7,376	6,454	7,267	7,845	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Investment in NDT funds
7,655	10,087	10,881	11,920	11,415	8,997	7,622	6,698	7,528	8,113	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Acquisitions of assets and businesses, net
-	-	-	-	-	-	-	-	-	208	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Proceeds from sales of assets and businesses
44	52	17	15	19	90	90	97	275	218	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in Exelon/PHI intercompany money pool
0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other investing activities
28	-3	-9	-14	-40	-10	28	22	36	58	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows used in investing activities
-2,305	-1,867	-1,990	-1,956	-2,349	-2,531	-2,593	-2,862	-2,367	-2,662	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in short-term borrowings
0	-	-	-	0	-	-	-	-413	-620	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Proceeds from short-term borrowings with maturities greater than 90 days
0	-	-	-	0	-	-	-	62	121	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments on short-term borrowings with maturities greater than 90 days
-	-	-	-	-	-	-	-	201	200	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of long-term debt
1,542	42	42	42	13	15	870	879	887	1,645	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Retirement of long-term debt
1,794	813	237	195	159	141	820	1,042	1,260	1,261	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in Exelon/PHI intercompany money pool
0	-100	0	0	-54	46	-146	-251	0	-1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Distributions to member
1,142	899	987	1,073	1,038	1,001	853	706	683	659	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other financing activities
-53	-51	-46	-52	-52	-55	-69	-71	-60	-54	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by (used in) financing activities
-311	-1,460	-1,127	-1,123	-1,300	-981	-1,054	-1,407	-1,170	-531	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) in cash, cash equivalents and restricted cash
295	-454	-194	147	-61	349	793	119	197	106	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase in PPE related to ARO update
658	959	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Commonwealth Edison Co [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
699	688	685	679	656	664	643	637	591	567	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation, Amortization and Accretion, Net
1,055	1,033	1,011	989	963	940	915	890	870	850	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
117	109	160	239	243	259	418	508	572	659	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other non-cash operating activities
225	265	235	272	344	242	463	105	149	164	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts receivable
39	34	-16	-53	161	136	280	204	112	59	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
16	-12	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-	-	-	-	-	-	-	-	5	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Inventories
15	16	19	9	7	-1	-2	-11	-5	-4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts payable and accrued expenses
-10	-51	-24	-10	40	70	371	-156	-219	-297	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Collateral (posted) received, net
64	48	64	35	1	11	-14	-31	-22	-26	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income taxes
83	95	152	120	72	62	-168	-327	-279	-308	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Pension and non-pension postretirement benefit contributions
153	77	72	71	71	42	44	43	44	41	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other assets and liabilities
356	345	423	418	293	348	227	194	121	-6	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by operating activities
1,686	1,703	1,776	1,814	1,706	1,749	1,525	1,341	1,425	1,527	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Property, Plant, and Equipment
1,918	1,915	1,999	2,061	2,098	2,126	2,092	2,108	2,155	2,250	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other investing activities
-23	-29	-32	-29	-32	-29	-25	-25	-21	-20	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows used in investing activities
-1,895	-1,886	-1,967	-2,032	-2,066	-2,097	-2,067	-2,083	-2,134	-2,230	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in short-term borrowings
-322	130	387	-17	5	0	0	0	0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of long-term debt
1,300	700	400	950	950	1,350	1,350	1,800	1,800	1,000	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Retirement of long-term debt
0	300	300	440	440	840	840	1,125	1,125	425	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends paid on common stock
506	508	494	484	472	459	451	440	431	422	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Contributions from parent
312	250	300	399	450	500	471	692	664	651	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other financing activities
-20	-16	-11	-17	-17	-17	-17	-24	-23	-15	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by (used in) financing activities
764	256	282	391	476	534	513	834	837	789	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) in cash, cash equivalents and restricted cash
555	73	91	173	116	186	-29	92	128	86	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PECO Energy Co [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
500	528	534	520	515	460	443	429	420	434	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation, Amortization and Accretion, Net
338	333	324	316	307	301	297	294	290	286	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
17	20	-4	13	4	-5	-13	-30	-9	19	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other non-cash operating activities
44	38	38	58	88	51	133	54	56	54	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts receivable
-71	29	-57	-8	109	74	174	113	70	44	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-15	-5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-	-	-	-	-	-	-	-	11	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Inventories
4	-4	4	6	3	14	7	2	6	-1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts payable and accrued expenses
-43	-11	-34	-16	-22	-3	46	18	52	6	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income taxes
-40	-34	16	-15	30	15	-33	2	14	34	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Pension and non-pension postretirement benefit contributions
19	28	29	30	29	28	26	26	25	24	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other assets and liabilities
29	64	108	38	-51	-29	-50	-15	61	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by operating activities
819	751	785	803	797	739	644	641	668	755	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Property, Plant, and Equipment
976	939	909	885	854	849	810	776	748	732	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in Exelon/PHI intercompany money pool
0	-	-	-	0	-	-	-	-	-131	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other investing activities
2	1	-10	-8	-9	-9	-4	-5	-5	-4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows used in investing activities
-1,068	-1,008	-899	-877	-845	-840	-749	-761	-743	-597	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in short-term borrowings
-	-	-	-	-	-	-	0	0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of long-term debt
-	-	-	-	-	700	700	700	650	325	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Retirement of long-term debt
-	-	-	-	-	500	500	500	500	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in Exelon/PHI intercompany money pool
-	-	-	-	-	-	-	0	0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends paid on common stock
353	358	274	193	109	306	372	437	503	288	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Contributions from parent
274	188	192	193	234	89	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other financing activities
-	-	-	-	-	-22	-21	-9	-8	-3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by (used in) financing activities
240	149	237	77	69	-39	-122	94	69	50	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) in cash, cash equivalents and restricted cash
-9	-108	123	3	21	-140	-227	-26	-6	208	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) Due from Affiliates
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Baltimore Gas and Electric Company [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
381	360	332	340	345	313	318	317	310	307	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation, Amortization and Accretion, Net
509	502	493	487	485	483	483	482	479	473	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
135	130	60	84	82	76	86	85	95	145	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other non-cash operating activities
50	85	79	44	105	58	159	73	69	65	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts receivable
-36	-25	-46	-20	-1	-8	28	9	30	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-2	1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-	-	-	-	-	-	-	-	3	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Inventories
-2	1	-5	-2	1	-2	-1	-1	6	9	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts payable and accrued expenses
-25	-43	-26	-26	-19	-1	7	20	57	-15	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Collateral (posted) received, net
-3	-4	-2	-1	3	4	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income taxes
-68	-67	-15	-4	-26	-20	0	-11	41	60	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Pension and non-pension postretirement benefit contributions
72	48	49	47	49	54	53	55	54	53	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other assets and liabilities
168	192	148	152	167	92	87	77	37	150	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by operating activities
775	748	777	777	721	789	795	816	926	821	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Property, Plant, and Equipment
1,170	1,145	1,134	1,067	993	959	934	911	900	882	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other investing activities
-1	-8	-5	-7	-9	-9	-9	-9	-4	-7	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows used in investing activities
-1,169	-1,137	-1,129	-1,060	-984	-950	-925	-902	-896	-875	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in short-term borrowings
35	40	0	93	61	-42	0	51	-50	32	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends paid on common stock
230	224	221	216	213	209	207	204	201	198	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by (used in) financing activities
390	401	367	284	255	156	216	76	-63	22	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) in cash, cash equivalents and restricted cash
-4	12	15	1	-8	-5	86	-10	-33	-32	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Pepco Holdings LLC [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
468	477	469	467	445	393	332	299	280	355	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation, Amortization and Accretion, Net
768	754	747	746	737	740	719	706	691	675	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
-11	-7	-12	18	13	30	112	207	256	252	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other non-cash operating activities
133	161	163	167	238	150	240	22	4	65	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts receivable
-8	39	-23	8	4	2	73	51	103	26	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-6	3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-	-	-	-	-	-	-	-	16	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Inventories
7	27	50	47	30	14	8	10	22	37	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts payable and accrued expenses
-24	-17	-70	-46	-8	45	58	21	19	-106	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income taxes
27	16	54	9	47	34	-34	5	15	79	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Pension and non-pension postretirement benefit contributions
46	25	23	23	25	74	91	93	88	99	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other assets and liabilities
190	179	136	181	215	178	196	220	207	258	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by operating activities
1,120	1,117	1,164	1,064	1,082	1,132	1,000	1,034	1,035	950	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Property, Plant, and Equipment
1,373	1,355	1,393	1,444	1,475	1,375	1,389	1,354	1,334	1,396	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other investing activities
3	3	-5	-4	-5	-4	3	-1	-2	1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows used in investing activities
-1,376	-1,358	-1,388	-1,440	-1,470	-1,371	-1,393	-1,354	-1,332	-1,397	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in short-term borrowings
-93	154	-77	-95	-206	-296	91	55	240	328	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Repayments on short-term borrowings with maturities greater than 90 days
-	-	-	-	-	-	-	-	-	500	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of long-term debt
635	485	0	0	0	-	-	-	-	202	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Retirement of long-term debt
158	157	396	399	292	299	75	74	157	169	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in Exelon/PHI intercompany money pool
19	12	0	-4	-13	0	9	7	0	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Distributions to member
532	526	523	433	383	326	276	289	313	311	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Contributions from member
523	398	431	433	404	385	0	0	0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other financing activities
-6	-5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by (used in) financing activities
263	236	162	231	376	330	405	359	227	306	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) in cash, cash equivalents and restricted cash
7	-5	-62	-145	-12	91	12	39	-70	-141	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Potomac Electric Power Company [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
240	243	248	239	229	205	184	182	171	198	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation, Amortization and Accretion, Net
375	374	380	383	383	385	365	349	335	321	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
1	1	-3	-2	-26	-20	18	70	112	113	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other non-cash operating activities
42	56	68	83	80	67	51	-23	-24	1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts receivable
-11	22	18	10	24	5	13	18	65	20	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-9	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-	-	-	-	-	-	-	-	-12	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Inventories
2	19	35	28	18	6	3	12	16	24	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts payable and accrued expenses
-31	-39	-57	-43	21	59	65	59	22	-63	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income taxes
11	9	-18	-39	-6	-13	-17	38	58	81	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Pension and non-pension postretirement benefit contributions
14	14	16	12	14	17	14	18	15	72	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other assets and liabilities
83	82	82	113	180	164	180	178	126	142	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by operating activities
541	512	463	424	429	474	455	505	504	407	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Property, Plant, and Equipment
662	626	636	667	673	656	664	624	616	628	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in Exelon/PHI intercompany money pool
0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other investing activities
2	-3	-1	-1	-3	-2	-3	-4	-5	0	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows used in investing activities
-778	-623	-635	-704	-670	-654	-662	-621	-611	-628	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in short-term borrowings
-105	42	-52	0	45	14	64	0	-107	3	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Issuance of long-term debt
410	260	0	0	0	-	-	-	-	202	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends paid on common stock
217	213	214	191	168	169	128	125	128	133	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Contributions from parent
283	160	210	210	180	166	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other financing activities
-4	-3	0	0	0	-	-	-	-	-1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by (used in) financing activities
242	121	177	252	239	193	103	43	114	219	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) in cash, cash equivalents and restricted cash
5	10	5	-28	-2	13	-104	-73	7	-2	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Delmarva Power and Light Company [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
139	147	146	146	142	120	104	102	95	121	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation, Amortization and Accretion, Net
186	184	185	185	183	182	178	176	173	167	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
-8	-7	-2	10	15	24	52	65	86	89	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other non-cash operating activities
18	27	29	27	54	24	31	-8	-17	9	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts receivable
-14	5	-24	-5	-4	-8	16	16	29	22	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
1	-5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-	-	-	-	-	-	-	-	-6	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Inventories
4	6	7	10	9	3	2	-2	-1	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts payable and accrued expenses
-4	3	-4	7	4	11	10	-16	-4	-8	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income taxes
14	12	13	-3	12	2	-7	29	0	26	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other assets and liabilities
55	55	42	55	24	7	18	20	41	71	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by operating activities
300	294	339	307	335	352	321	343	314	321	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Property, Plant, and Equipment
365	348	355	358	377	364	388	402	411	428	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other investing activities
3	-1	0	0	0	-	-	-	-	1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows used in investing activities
-368	-347	-353	-356	-375	-362	-389	-403	-414	-429	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in short-term borrowings
49	56	57	0	-206	-216	-54	-25	211	216	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in Exelon/PHI intercompany money pool
0	-	-	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends paid on common stock
150	139	143	126	101	96	88	98	118	112	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Contributions from parent
69	63	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by (used in) financing activities
67	42	-85	-88	41	32	175	195	63	64	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) in cash, cash equivalents and restricted cash
-1	-11	-99	-137	1	22	107	135	-37	-44	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Atlantic City Electric Company [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
102	99	86	84	78	75	76	56	56	77	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Depreciation, Amortization and Accretion, Net
169	157	143	138	134	136	140	143	144	146	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Deferred income taxes and amortization of investment tax credits
2	3	3	21	23	25	28	46	41	32	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other non-cash operating activities
21	22	21	29	38	24	62	12	10	17	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts receivable
15	13	-14	6	-10	8	45	17	5	-14	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
1	-6	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Receivables from and payables to affiliates, net
-	-	-	-	-	-	-	-	1	-	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Inventories
0	1	6	9	3	4	2	0	6	7	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Accounts payable and accrued expenses
17	26	-1	-5	-25	-7	10	9	33	-2	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Income taxes
5	2	6	1	-3	-2	-5	-19	-14	-11	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Pension and non-pension postretirement benefit contributions
3	1	0	0	0	6	26	26	26	20	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other assets and liabilities
42	27	12	17	6	6	-3	27	48	47	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by operating activities
257	261	254	222	229	228	208	196	207	206	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Payments to Acquire Property, Plant, and Equipment
348	375	388	392	400	335	317	307	287	312	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Other investing activities
-5	1	-2	-3	-2	-1	2	3	3	1	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows used in investing activities
-343	-376	-386	-389	-398	-334	-319	-310	-290	-313	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in short-term borrowings
-37	56	-82	-95	-45	-94	80	80	136	108	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Retirement of long-term debt
19	18	272	275	277	281	32	33	33	35	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Changes in Exelon/PHI intercompany money pool
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dividends paid on common stock
135	124	113	64	62	59	61	65	67	68	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Contributions from parent
171	175	222	222	72	67	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Net cash flows provided by (used in) financing activities
81	113	126	159	160	105	112	108	36	5	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (Decrease) in cash, cash equivalents and restricted cash
-5	-2	-6	-8	-9	-1	1	-6	-47	-102	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Increase (decrease) in capital expenditures not paid
0	-	-	-	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Delmarva Power & Light Company [Member]
Retirement of long-term debt
-	-	-	-	-	4	30	30	30	40	0	0	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-