Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents		$ 2,129	$ 587
Restricted cash and cash equivalents		373	358
Accounts receivable
Customer accounts receivable		3,075	4,835
Customer allowance for credit losses		(261)	(243)
Customer accounts receivable, net		2,814	4,592
Other accounts receivable		1,549	1,631
Other allowance for credit losses		(61)	(48)
Other accounts receivable, net		1,488	1,583
Mark-to-market derivative assets, current		573	679
Unamortized energy contract assets, current		43	47
Inventories, net
Fossil fuel and emission allowances		273	312
Materials and supplies		1,508	1,456
Regulatory assets, current		1,193	1,170
Other		2,139	1,253
Total current assets		12,533	12,037
Property, plant and equipment, net		81,748	80,233
Deferred debits and other assets
Regulatory assets, noncurrent		8,313	8,335
Nuclear decommissioning trust funds		12,730	13,190
Investments		424	464
Goodwill		6,677	6,677
Mark-to-market derivative assets, noncurrent		466	508
Unamortized energy contract assets, noncurrent		321	336
Other		3,101	3,197
Total deferred debits and other assets		32,032	32,707
Total assets	[1]	126,313	124,977
Current Liabilities
Short-term borrowings		1,119	1,370
Long-term debt due within one year		2,514	4,710
Accounts payable		3,047	3,560
Accrued expenses		1,616	1,981
Payables to affiliates, current		5	5
Regulatory liabilities, current		495	406
Mark-to-market derivative liabilities, current		204	247
Unamortized energy contract liabilities, current		113	132
Renewable energy credit obligation		478	443
Other		1,474	1,331
Total current liabilities		11,065	14,185
Long-term debt		36,112	31,329
Long-term debt to financing trusts		390	390
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		12,720	12,351
Asset retirement obligations, noncurrent		11,059	10,846
Pension obligations		3,659	4,247
Non-pension postretirement benefit obligations		2,121	2,076
Spent nuclear fuel obligation		1,206	1,199
Regulatory liabilities, noncurrent		9,414	9,986
Mark-to-market derivative liabilities, noncurrent		440	393
Unamortized energy contract liabilities, noncurrent		292	338
Other		2,964	3,064
Total deferred credits and other liabilities		43,875	44,500
Total liabilities	[1]	91,442	90,404
Commitments and contingencies
Shareholders' equity
Common stock		19,336	19,274
Treasury stock, at cost		(123)	(123)
Retained earnings/Undistributed earnings		16,622	16,267
Accumulated other comprehensive loss, net		(3,132)	(3,194)
Total shareholders’ equity		32,703	32,224
Member’s equity
Noncontrolling interests		2,168	2,349
Total equity		34,871	34,573
Total liabilities and shareholders’ equity		126,313	124,977
Variable Interest Entity, Primary Beneficiary [Member]
Current Assets
Cash and cash equivalents		114	163
Restricted cash and cash equivalents		105	88
Accounts receivable
Customer accounts receivable, net		145	151
Unamortized energy contract assets, current		22	23
Inventories, net
Materials and supplies		236	227
Other		675	32
Total current assets		1,335	723
Property, plant and equipment, net		5,939	6,022
Deferred debits and other assets
Nuclear decommissioning trust funds		2,642	2,741
Unamortized energy contract assets, noncurrent		258	250
Other		44	89
Total assets		10,218	9,825
Current Liabilities
Long-term debt due within one year		191	544
Accounts payable		71	106
Accrued expenses		60	70
Unamortized energy contract liabilities, current		6	8
Other		6	3
Total current liabilities		334	731
Long-term debt		947	527
Deferred credits and other liabilities
Asset retirement obligations, noncurrent		2,182	2,128
Unamortized energy contract liabilities, noncurrent		1	1
Other		80	89
Total liabilities		3,544	3,476
Variable Interest Entity, Primary Beneficiary [Member] | Nonrecourse [Member]
Deferred credits and other liabilities
Total liabilities		3,542	3,473
Variable Interest Entity, Primary Beneficiary [Member] | Asset Pledged as Collateral [Member]
Deferred debits and other assets
Total assets		9,937	9,532
Exelon Generation Co L L C [Member]
Current Assets
Cash and cash equivalents		483	303
Restricted cash and cash equivalents		153	146
Accounts receivable
Customer accounts receivable		1,117	2,973
Customer allowance for credit losses		(33)	(80)
Customer accounts receivable, net		1,084	2,893
Other accounts receivable		360	619
Other accounts receivable, net		360	619
Mark-to-market derivative assets, current		570	675
Receivables from affiliates, current		118	190
Unamortized energy contract assets, current		44	47
Inventories, net
Fossil fuel and emission allowances		220	236
Materials and supplies		1,075	1,026
Renewable energy credits, current		399	336
Other		1,343	605
Total current assets		5,849	7,076
Property, plant and equipment, net		23,954	24,193
Deferred debits and other assets
Nuclear decommissioning trust funds		12,730	13,190
Investments		192	235
Goodwill		47	47
Mark-to-market derivative assets, noncurrent		466	508
Prepaid pension asset		1,613	1,438
Unamortized energy contract assets, noncurrent		320	336
Deferred income taxes		11	12
Other		1,821	1,960
Total deferred debits and other assets		17,200	17,726
Total assets	[2]	47,003	48,995
Current Liabilities
Short-term borrowings		600	320
Long-term debt due within one year		785	2,624
Long-term debt to affiliates due within one year		554	558
Accounts payable		1,075	1,692
Accrued expenses		621	786
Payables to affiliates, current		113	117
Mark-to-market derivative liabilities, current		173	215
Unamortized energy contract liabilities, current		9	17
Renewable energy credit obligation		478	443
Other		430	517
Total current liabilities		4,838	7,289
Long-term debt		5,768	4,464
Long-term debt to affiliates		326	328
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		3,701	3,752
Asset retirement obligations, noncurrent		10,819	10,603
Non-pension postretirement benefit obligations		868	878
Spent nuclear fuel obligation		1,206	1,199
Payables to affiliates, noncurrent		2,751	3,103
Mark-to-market derivative liabilities, noncurrent		154	123
Unamortized energy contract liabilities, noncurrent		10	11
Other		1,335	1,415
Total deferred credits and other liabilities		20,844	21,084
Total liabilities	[2]	31,776	33,165
Commitments and contingencies
Shareholders' equity
Retained earnings/Undistributed earnings		3,534	3,950
Accumulated other comprehensive loss, net		(39)	(32)
Member’s equity
Membership interest		9,569	9,566
Total members' equity		13,064	13,484
Noncontrolling interests		2,163	2,346
Total equity		15,227	15,830
Total liabilities and shareholders’ equity		47,003	48,995
Exelon Generation Co L L C [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Current Assets
Cash and cash equivalents		114	163
Restricted cash and cash equivalents		102	85
Accounts receivable
Customer accounts receivable, net		145	151
Unamortized energy contract assets, current		22	23
Inventories, net
Materials and supplies		236	227
Other		671	31
Total current assets		1,328	719
Property, plant and equipment, net		5,939	6,022
Deferred debits and other assets
Nuclear decommissioning trust funds		2,642	2,741
Unamortized energy contract assets, noncurrent		258	250
Other		30	73
Total assets		10,197	9,805
Current Liabilities
Long-term debt due within one year		167	523
Accounts payable		71	106
Accrued expenses		60	70
Unamortized energy contract liabilities, current		6	8
Other		6	3
Total current liabilities		310	710
Long-term debt		934	504
Deferred credits and other liabilities
Asset retirement obligations, noncurrent		2,182	2,128
Unamortized energy contract liabilities, noncurrent		1	1
Other		80	89
Total liabilities		3,507	3,432
Exelon Generation Co L L C [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Nonrecourse [Member]
Deferred credits and other liabilities
Total liabilities		3,505	3,429
Exelon Generation Co L L C [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Asset Pledged as Collateral [Member]
Deferred debits and other assets
Total assets		9,916	9,512
Commonwealth Edison Co [Member]
Current Assets
Cash and cash equivalents		403	90
Restricted cash and cash equivalents		155	150
Accounts receivable
Customer accounts receivable		706	604
Customer allowance for credit losses		(72)	(59)
Customer accounts receivable, net		634	545
Other accounts receivable		361	306
Other allowance for credit losses		(22)	(20)
Other accounts receivable, net		339	286
Receivables from affiliates, current		23	28
Inventories, net
Inventories, net		166	159
Regulatory assets, current		271	281
Other		59	44
Total current assets		2,050	1,583
Property, plant and equipment, net		23,717	23,107
Deferred debits and other assets
Regulatory assets, noncurrent		1,610	1,480
Investments		6	6
Goodwill		2,625	2,625
Receivables from affiliates, noncurrent		2,374	2,622
Prepaid pension asset		1,079	995
Other		435	347
Total deferred debits and other assets		8,129	8,075
Total assets		33,896	32,765
Current Liabilities
Short-term borrowings		0	130
Long-term debt due within one year		500	500
Accounts payable		579	527
Accrued expenses		330	385
Payables to affiliates, current		92	103
Customer deposits		116	118
Regulatory liabilities, current		175	200
Mark-to-market derivative liabilities, current		31	32
Deferred Prosecution Agreement payments		200	0
Other		122	122
Total current liabilities		2,145	2,117
Long-term debt		8,980	7,991
Long-term debt to financing trusts		205	205
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		4,201	4,021
Asset retirement obligations, noncurrent		127	128
Non-pension postretirement benefit obligations		177	180
Regulatory liabilities, noncurrent		6,309	6,542
Mark-to-market derivative liabilities, noncurrent		287	269
Other		681	635
Total deferred credits and other liabilities		11,782	11,775
Total liabilities		23,112	22,088
Commitments and contingencies
Shareholders' equity
Common stock		1,588	1,588
Other paid-in capital		7,821	7,572
Retained deficit unappropriated		(1,700)	(1,639)
Retained earnings appropriated		3,075	3,156
Total shareholders’ equity		10,784	10,677
Member’s equity
Total liabilities and shareholders’ equity		33,896	32,765
PECO Energy Co [Member]
Current Assets
Cash and cash equivalents		380	21
Restricted cash and cash equivalents		7	6
Accounts receivable
Customer accounts receivable		379	412
Customer allowance for credit losses		(71)	(55)
Customer accounts receivable, net		308	357
Other accounts receivable		128	145
Other allowance for credit losses		(7)	(7)
Other accounts receivable, net		121	138
Receivables from affiliates, current		0	1
Receivable from Exelon/PHI intercompany money pool		0	68
Inventories, net
Fossil fuel and emission allowances		26	36
Materials and supplies		35	35
Prepaid utility taxes		76	0
Regulatory assets, current		46	41
Other		21	19
Total current assets		1,020	722
Property, plant and equipment, net		9,688	9,292
Deferred debits and other assets
Regulatory assets, noncurrent		604	554
Investments		27	27
Receivables from affiliates, noncurrent		376	480
Prepaid pension asset		379	365
Other		26	29
Total deferred debits and other assets		1,412	1,455
Total assets		12,120	11,469
Current Liabilities
Accounts payable		463	387
Accrued expenses		92	101
Payables to affiliates, current		57	55
Customer deposits		67	69
Regulatory liabilities, current		116	91
Other		29	19
Total current liabilities		824	722
Long-term debt		3,752	3,405
Long-term debt to financing trusts		184	184
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		2,139	2,080
Asset retirement obligations, noncurrent		26	28
Non-pension postretirement benefit obligations		287	288
Regulatory liabilities, noncurrent		404	510
Other		86	74
Total deferred credits and other liabilities		2,942	2,980
Total liabilities		7,702	7,291
Commitments and contingencies
Shareholders' equity
Common stock		2,997	2,766
Retained earnings/Undistributed earnings		1,421	1,412
Total shareholders’ equity		4,418	4,178
Member’s equity
Total liabilities and shareholders’ equity		12,120	11,469
Baltimore Gas and Electric Company [Member]
Current Assets
Cash and cash equivalents		195	24
Restricted cash and cash equivalents		1	1
Accounts receivable
Customer accounts receivable		318	329
Customer allowance for credit losses		(23)	(12)
Customer accounts receivable, net		295	317
Other accounts receivable		121	152
Other allowance for credit losses		(6)	(5)
Other accounts receivable, net		115	147
Receivables from affiliates, current		0	1
Inventories, net
Fossil fuel and emission allowances		22	30
Materials and supplies		44	46
Prepaid utility taxes		0	78
Regulatory assets, current		177	183
Other		6	6
Total current assets		855	833
Property, plant and equipment, net		9,332	8,990
Deferred debits and other assets
Regulatory assets, noncurrent		464	454
Investments		10	7
Prepaid pension asset		295	264
Other		71	86
Total deferred debits and other assets		840	811
Total assets		11,027	10,634
Current Liabilities
Short-term borrowings		0	76
Accounts payable		244	243
Accrued expenses		120	152
Payables to affiliates, current		41	66
Customer deposits		118	120
Regulatory liabilities, current		44	33
Other		63	63
Total current liabilities		630	753
Long-term debt		3,663	3,270
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		1,480	1,396
Asset retirement obligations, noncurrent		22	22
Non-pension postretirement benefit obligations		193	199
Regulatory liabilities, noncurrent		1,131	1,195
Other		103	116
Total deferred credits and other liabilities		2,929	2,928
Total liabilities		7,222	6,951
Commitments and contingencies
Shareholders' equity
Common stock		1,933	1,907
Retained earnings/Undistributed earnings		1,872	1,776
Total shareholders’ equity		3,805	3,683
Member’s equity
Total liabilities and shareholders’ equity		11,027	10,634
Pepco Holdings LLC [Member]
Current Assets
Cash and cash equivalents		39	131
Restricted cash and cash equivalents		36	36
Accounts receivable
Customer accounts receivable		554	516
Customer allowance for credit losses		(62)	(37)
Customer accounts receivable, net		492	479
Other accounts receivable		234	190
Other allowance for credit losses		(26)	(16)
Other accounts receivable, net		208	174
Receivables from affiliates, current		1	1
Inventories, net
Fossil fuel and emission allowances		5	8
Materials and supplies		187	190
Regulatory assets, current		449	412
Other		75	49
Total current assets		1,492	1,480
Property, plant and equipment, net		14,692	14,296
Deferred debits and other assets
Regulatory assets, noncurrent		1,962	2,061
Investments		135	135
Goodwill		4,005	4,005
Prepaid pension asset		396	406
Deferred income taxes		13	13
Other		309	323
Total deferred debits and other assets		6,820	6,943
Total assets	[3]	23,004	22,719
Current Liabilities
Short-term borrowings		19	208
Long-term debt due within one year		350	103
Accounts payable		486	462
Accrued expenses		238	296
Payables to affiliates, current		76	98
Borrowings from Exelon/PHI intercompany money pool		22	12
Customer deposits		115	117
Regulatory liabilities, current		148	70
Unamortized energy contract liabilities, current		103	115
Other		128	131
Total current liabilities		1,685	1,612
Long-term debt		6,540	6,460
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		2,350	2,278
Asset retirement obligations, noncurrent		57	57
Non-pension postretirement benefit obligations		87	93
Regulatory liabilities, noncurrent		1,553	1,707
Unamortized energy contract liabilities, noncurrent		282	327
Other		549	577
Total deferred credits and other liabilities		4,878	5,039
Total liabilities	[3]	13,103	13,111
Commitments and contingencies
Shareholders' equity
Retained earnings/Undistributed earnings		(76)	(10)
Member’s equity
Membership interest		9,977	9,618
Total members' equity		9,901	9,608
Total equity		9,901	9,608
Total liabilities and shareholders’ equity		23,004	22,719
Pepco Holdings LLC [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Current Assets
Cash and cash equivalents		0	0
Restricted cash and cash equivalents		3	3
Accounts receivable
Customer accounts receivable, net		0	0
Unamortized energy contract assets, current		0	0
Inventories, net
Materials and supplies		0	0
Other		4	1
Total current assets		7	4
Property, plant and equipment, net		0	0
Deferred debits and other assets
Nuclear decommissioning trust funds		0	0
Unamortized energy contract assets, noncurrent		0	0
Other		14	16
Total assets		21	20
Current Liabilities
Long-term debt due within one year		24	21
Accounts payable		0	0
Accrued expenses		0	0
Unamortized energy contract liabilities, current		0	0
Other		0	0
Total current liabilities		24	21
Long-term debt		13	23
Deferred credits and other liabilities
Asset retirement obligations, noncurrent		0	0
Unamortized energy contract liabilities, noncurrent		0	0
Other		0	0
Total liabilities		37	44
Pepco Holdings LLC [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Nonrecourse [Member]
Deferred credits and other liabilities
Total liabilities		37	44
Pepco Holdings LLC [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Asset Pledged as Collateral [Member]
Deferred debits and other assets
Total assets		21	20
Potomac Electric Power Company [Member]
Current Assets
Cash and cash equivalents		19	30
Restricted cash and cash equivalents		33	33
Accounts receivable
Customer accounts receivable		272	244
Customer allowance for credit losses		(24)	(13)
Customer accounts receivable, net		248	231
Other accounts receivable		121	98
Other allowance for credit losses		(11)	(7)
Other accounts receivable, net		110	91
Receivables from affiliates, current		2	0
Inventories, net
Inventories, net		109	112
Regulatory assets, current		215	188
Other		11	11
Total current assets		747	696
Property, plant and equipment, net		7,102	6,909
Deferred debits and other assets
Regulatory assets, noncurrent		556	584
Investments		111	110
Prepaid pension asset		290	296
Other		63	66
Total deferred debits and other assets		1,020	1,056
Total assets		8,869	8,661
Current Liabilities
Short-term borrowings		14	82
Long-term debt due within one year		3	2
Accounts payable		195	195
Accrued expenses		123	156
Payables to affiliates, current		46	66
Borrowings from Exelon/PHI intercompany money pool		50	0
Customer deposits		57	57
Regulatory liabilities, current		48	8
Merger related obligation		39	39
Current portion of DC PLUG obligation		30	30
Other		16	22
Total current liabilities		621	657
Long-term debt		3,010	2,862
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		1,168	1,131
Asset retirement obligations, noncurrent		41	41
Non-pension postretirement benefit obligations		15	20
Regulatory liabilities, noncurrent		686	746
Other		276	297
Total deferred credits and other liabilities		2,186	2,235
Total liabilities		5,817	5,754
Commitments and contingencies
Shareholders' equity
Common stock		1,933	1,796
Retained earnings/Undistributed earnings		1,119	1,111
Total shareholders’ equity		3,052	2,907
Member’s equity
Total liabilities and shareholders’ equity		8,869	8,661
Delmarva Power and Light Company [Member]
Current Assets
Cash and cash equivalents		6	13
Restricted cash and cash equivalents		0	0
Accounts receivable
Customer accounts receivable		145	152
Customer allowance for credit losses		(18)	(11)
Customer accounts receivable, net		127	141
Other accounts receivable		48	42
Other allowance for credit losses		(7)	(4)
Other accounts receivable, net		41	38
Receivables from affiliates, current		1	0
Receivable from Exelon/PHI intercompany money pool		55	0
Inventories, net
Fossil fuel and emission allowances		5	8
Materials and supplies		47	44
Prepaid utility taxes		2	18
Regulatory assets, current		55	52
Renewable energy credits, current		21	9
Other		3	2
Total current assets		363	325
Property, plant and equipment, net		4,143	4,035
Deferred debits and other assets
Regulatory assets, noncurrent		222	222
Goodwill		8	8
Prepaid pension asset		166	171
Other		64	69
Total deferred debits and other assets		460	470
Total assets		4,966	4,830
Current Liabilities
Short-term borrowings		0	56
Long-term debt due within one year		81	80
Accounts payable		113	112
Accrued expenses		34	46
Payables to affiliates, current		27	32
Customer deposits		35	36
Regulatory liabilities, current		60	37
Other		17	15
Total current liabilities		367	414
Long-term debt		1,594	1,487
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		680	655
Non-pension postretirement benefit obligations		15	16
Regulatory liabilities, noncurrent		526	574
Other		100	104
Total deferred credits and other liabilities		1,321	1,349
Total liabilities		3,282	3,250
Commitments and contingencies
Shareholders' equity
Common stock		1,083	977
Retained earnings/Undistributed earnings		601	603
Total shareholders’ equity		1,684	1,580
Member’s equity
Total liabilities and shareholders’ equity		4,966	4,830
Atlantic City Electric Company [Member]
Current Assets
Cash and cash equivalents		8	12
Restricted cash and cash equivalents		3	2
Accounts receivable
Customer accounts receivable		137	121
Customer allowance for credit losses		(20)	(13)
Customer accounts receivable, net		117	108
Other accounts receivable		59	53
Other allowance for credit losses		(8)	(5)
Other accounts receivable, net		51	48
Receivables from affiliates, current		1	4
Inventories, net
Inventories, net		32	34
Prepaid utility taxes		34	0
Regulatory assets, current		71	57
Other		4	5
Total current assets		321	270
Property, plant and equipment, net		3,302	3,190
Deferred debits and other assets
Regulatory assets, noncurrent		369	368
Prepaid pension asset		47	52
Other		50	53
Total deferred debits and other assets		466	473
Total assets	[4]	4,089	3,933
Current Liabilities
Short-term borrowings		5	70
Long-term debt due within one year		260	20
Accounts payable		170	144
Accrued expenses		39	42
Payables to affiliates, current		31	25
Borrowings from Exelon/PHI intercompany money pool		5	0
Customer deposits		24	25
Regulatory liabilities, current		40	25
Other		8	9
Total current liabilities		582	360
Long-term debt		1,160	1,307
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits		590	577
Non-pension postretirement benefit obligations		17	17
Regulatory liabilities, noncurrent		312	357
Other		40	39
Total deferred credits and other liabilities		959	990
Total liabilities	[4]	2,701	2,657
Commitments and contingencies
Shareholders' equity
Common stock		1,270	1,154
Retained earnings/Undistributed earnings		118	122
Total shareholders’ equity		1,388	1,276
Member’s equity
Total liabilities and shareholders’ equity		4,089	3,933
Atlantic City Electric Company [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Current Assets
Cash and cash equivalents		0	0
Restricted cash and cash equivalents		3	3
Accounts receivable
Customer accounts receivable, net		0	0
Unamortized energy contract assets, current		0	0
Inventories, net
Materials and supplies		0	0
Other		0	0
Total current assets		3	3
Property, plant and equipment, net		0	0
Deferred debits and other assets
Nuclear decommissioning trust funds		0	0
Unamortized energy contract assets, noncurrent		0	0
Other		11	14
Total assets		14	17
Current Liabilities
Long-term debt due within one year		20	20
Accounts payable		0	0
Accrued expenses		0	0
Unamortized energy contract liabilities, current		0	0
Other		0	0
Total current liabilities		20	20
Long-term debt		11	21
Deferred credits and other liabilities
Asset retirement obligations, noncurrent		0	0
Unamortized energy contract liabilities, noncurrent		0	0
Other		0	0
Total liabilities		31	41
Atlantic City Electric Company [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Nonrecourse [Member]
Deferred credits and other liabilities
Total liabilities		31	41
Atlantic City Electric Company [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Asset Pledged as Collateral [Member]
Deferred debits and other assets
Total assets		$ 14	$ 17

[1] Exelon’s consolidated assets include $9,937 million and $9,532 million at June 30, 2020 and December 31, 2019, respectively, of certain VIEs that can only be used to settle the liabilities of the VIE. Exelon’s consolidated liabilities include $3,542 million and $3,473 million at June 30, 2020 and December 31, 2019, respectively, of certain VIEs for which the VIE creditors do not have recourse to Exelon. See Note 16 — Variable Interest Entities for additional information.

[2] Generation’s consolidated assets include $9,916 million and $9,512 million at June 30, 2020 and December 31, 2019, respectively, of certain VIEs that can only be used to settle the liabilities of the VIE. Generation’s consolidated liabilities include $3,505 million and $3,429 million at June 30, 2020 and December 31, 2019, respectively, of certain VIEs for which the VIE creditors do not have recourse to Generation. See Note 16 — Variable Interest Entities for additional information.

[3] PHI’s consolidated total assets include $21 million and $20 million at June 30, 2020 and December 31, 2019, respectively, of PHI's consolidated VIE that can only be used to settle the liabilities of the VIE. PHI’s consolidated total liabilities include $37 million and $44 million at June 30, 2020 and December 31, 2019, respectively, of PHI's consolidated VIE for which the VIE creditors do not have recourse to PHI. See Note 16 — Variable Interest Entities for additional information.

[4] ACE’s consolidated total assets include $14 million and $17 million at June 30, 2020 and December 31, 2019, respectively, of ACE's consolidated VIE that can only be used to settle the liabilities of the VIE. ACE’s consolidated total liabilities include $31 million and $41 million at June 30, 2020 and December 31, 2019, respectively, of ACE's consolidated VIE for which the VIE creditors do not have recourse to ACE. See Note 16 — Variable Interest Entities for additional information.