Consolidated Balance Sheets, Parent - USD ($) $ in Millions		Dec. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents		$ 422	$ 504
Restricted cash and cash equivalents		106	72
Accounts receivable
Customer accounts receivable (net of allowance for credit losses of $46 and $55 as of December 31, 2022 and December 31, 2021, respectively)		2,585	1,669
Other accounts receivable (net of allowance for credit losses of $5 as of December 31, 2022 and December 31, 2021)		731	592
Mark-to-market derivative assets		2,368	2,169
Receivables from affiliates		0	160
Inventories, net
Natural gas, oil, and emission allowances		429	284
Materials and supplies		1,076	1,004
Renewable energy credits		617	520
Other		1,026	1,007
Total current assets		9,360	7,981
Property, plant, and equipment (net of accumulated depreciation and amortization of $16,726 and $15,873 as of December 31, 2022 and 2021, respectively)		19,822	19,612
Deferred debits and other assets
Nuclear decommissioning trust funds		14,114	15,938
Investments		202	174
Mark-to-market derivative assets		1,261	949
Prepaid pension asset		0	1,683
Deferred income taxes		44	32
Other		2,106	1,717
Total deferred debits and other assets		17,727	20,493
Total assets	[1]	46,909	48,086
Current liabilities
Short-term borrowings		1,159	2,082
Long-term debt due within one year		143	1,220
Accounts payable		2,828	1,757
Accrued expenses		906	737
Payables to affiliates		0	131
Mark-to-market derivative liabilities		1,558	981
Renewable energy credit obligation		901	777
Other		344	311
Total current liabilities		7,839	7,996
Long-term debt		4,466	4,575
Long-term debt to affiliates		0	319
Deferred credits and other liabilities
Deferred income taxes and unamortized ITCs		3,031	3,703
Asset retirement obligations		12,699	12,819
Pension obligations		605	0
Non-pension postretirement benefit obligations		609	847
Spent nuclear fuel obligation		1,230	1,210
Payables to affiliates		0	3,357
Payables related to Regulatory Agreement Units		2,897	0
Mark-to-market derivative liabilities		983	513
Other		1,178	1,133
Total deferred credits and other liabilities		23,232	23,582
Total liabilities	[1]	35,537	36,472
Commitments and contingencies (Note 19)
Member’s equity
Predecessor Member's Equity	[2]	0	11,250
Common stock (No par value, 1,000 shares authorized, 327 shares outstanding as of December 31, 2022)		13,274	0
Retained deficit		(496)	0
Accumulated other comprehensive loss, net		(1,760)	(31)
Total shareholders’ equity		11,018	11,219
Noncontrolling interests		354	395
Total equity		11,372	11,614
Total liabilities and equity		46,909	48,086
Constellation Energy Generation, LLC
Current assets
Cash and cash equivalents		403	504
Restricted cash and cash equivalents		98	72
Accounts receivable
Customer accounts receivable (net of allowance for credit losses of $46 and $55 as of December 31, 2022 and December 31, 2021, respectively)		2,585	1,669
Other accounts receivable (net of allowance for credit losses of $5 as of December 31, 2022 and December 31, 2021)		718	592
Mark-to-market derivative assets		2,368	2,169
Receivables from affiliates		0	160
Inventories, net
Natural gas, oil, and emission allowances		429	284
Materials and supplies		1,076	1,004
Renewable energy credits		617	520
Other		1,026	1,007
Total current assets		9,320	7,981
Property, plant, and equipment (net of accumulated depreciation and amortization of $16,726 and $15,873 as of December 31, 2022 and 2021, respectively)		19,822	19,612
Deferred debits and other assets
Nuclear decommissioning trust funds		14,114	15,938
Investments		202	174
Mark-to-market derivative assets		1,261	949
Prepaid pension asset		0	1,683
Deferred income taxes		44	32
Other		2,106	1,717
Total deferred debits and other assets		17,727	20,493
Total assets	[3]	46,869	48,086
Current liabilities
Short-term borrowings		1,159	2,082
Long-term debt due within one year		143	1,220
Accounts payable		2,810	1,757
Accrued expenses		869	737
Payables to affiliates		45	131
Mark-to-market derivative liabilities		1,558	981
Renewable energy credit obligation		901	777
Other		344	311
Total current liabilities		7,829	7,996
Long-term debt		4,466	4,575
Long-term debt to affiliates		0	319
Deferred credits and other liabilities
Deferred income taxes and unamortized ITCs		3,031	3,703
Asset retirement obligations		12,699	12,819
Pension obligations		605	0
Non-pension postretirement benefit obligations		609	847
Spent nuclear fuel obligation		1,230	1,210
Payables to affiliates		0	3,357
Payables related to Regulatory Agreement Units		2,897	0
Mark-to-market derivative liabilities		983	513
Other		1,106	1,133
Total deferred credits and other liabilities		23,160	23,582
Total liabilities	[3]	35,455	36,472
Commitments and contingencies (Note 19)
Member’s equity
Predecessor Member's Equity		12,408	10,482
Retained deficit		412	768
Accumulated other comprehensive loss, net		(1,760)	(31)
Total liabilities and equity		46,869	48,086
Variable Interest Entity, Primary Beneficiary
Current assets
Cash and cash equivalents		51	35
Restricted cash and cash equivalents		46	48
Accounts receivable
Customer accounts receivable (net of allowance for credit losses of $46 and $55 as of December 31, 2022 and December 31, 2021, respectively)		20	24
Other accounts receivable (net of allowance for credit losses of $5 as of December 31, 2022 and December 31, 2021)		9	6
Inventories, net
Materials and supplies		12	14
Other		549	405
Total current assets		687	532
Property, plant, and equipment (net of accumulated depreciation and amortization of $16,726 and $15,873 as of December 31, 2022 and 2021, respectively)		1,965	2,027
Deferred debits and other assets
Other		190	215
Total assets		2,842	2,774
Current liabilities
Long-term debt due within one year		60	70
Accounts payable		17	10
Accrued expenses		23	21
Other		2	1
Total current liabilities		102	102
Long-term debt		764	822
Deferred credits and other liabilities
Other		3	3
Total deferred credits and other liabilities		940	976
Total liabilities		1,042	1,078
Variable Interest Entity, Primary Beneficiary | Nonrecourse
Deferred credits and other liabilities
Total liabilities		1,041	1,077
Variable Interest Entity, Primary Beneficiary | Nonrecourse | Constellation Energy Generation, LLC
Deferred credits and other liabilities
Total liabilities		1,041	1,077
Variable Interest Entity, Primary Beneficiary | Asset Pledged as Collateral
Deferred debits and other assets
Total assets		2,641	2,549
Variable Interest Entity, Primary Beneficiary | Asset Pledged as Collateral | Constellation Energy Generation, LLC
Deferred debits and other assets
Total assets		$ 2,641	$ 2,549

[1] Our consolidated assets include $2,641 million and $2,549 million at December 31, 2022 and 2021, respectively, of certain VIEs that can only be used to settle the liabilities of the VIE. Our consolidated liabilities include $1,041 million and $1,077 million at December 31, 2022 and 2021, respectively, of certain VIEs for which the VIE creditors do not have recourse to us. See Note 22–Variable Interest Entities for additional information.

[2] Represents Constellation’s predecessor member's equity prior to the separation transaction. Upon completion of the separation, the predecessor member's equity was transferred to CEG Parent’s Common stock. See Note 1 — Basis of Presentation for additional information on the separation.

[3] Our consolidated assets include $2,641 million and $2,549 million as of December 31, 2022 and 2021, respectively, of certain VIEs that can only be used to settle the liabilities of the VIE. Our consolidated liabilities include $1,041 million and $1,077 million as of December 31, 2022 and 2021, respectively, of certain VIEs for which the VIE creditors do not have recourse to us. See Note 22–Variable Interest Entities for additional information.