CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current Assets
Cash and cash equivalents	$ 250	$ 3,905
Funds deposited by counterparties	845	19
Restricted cash	15	6
Accounts receivable, net	3,245	904
Uplift securitization proceeds receivable from ERCOT	689	0
Inventory	498	327
Derivative instruments	4,613	560
Cash collateral paid in support of energy risk management activities	291	50
Prepayments and other current assets	395	257
Total current assets	10,841	6,028
Property, plant and equipment, net	1,688	2,547
Other Assets
Equity investments in affiliates	157	346
Operating lease right-of-use assets, net	271	301
Goodwill	1,795	579
Intangible assets, net	2,511	668
Nuclear decommissioning trust fund	1,008	890
Derivative instruments	2,527	261
Deferred Income Tax Assets, Net	2,155	3,066
Other non-current assets	229	216
Total other assets	10,653	6,327
Total Assets	23,182	14,902
Current Liabilities
Current portion of long-term debt and finance leases	4	1
Current portion of operating lease liabilities	81	69
Accounts payable	2,274	649
Derivative instruments	3,387	499
Cash collateral received in support of energy risk management activities	845	19
Accrued expenses and other current liabilities	1,324	678
Total current liabilities	7,915	1,915
Other Liabilities
Long-term debt and finance leases	7,966	8,691
Non-current operating lease liabilities	236	278
Nuclear decommissioning reserve	321	303
Nuclear decommissioning trust liability	666	565
Derivative instruments	1,412	385
Deferred income taxes	73	19
Other non-current liabilities	993	1,066
Total other liabilities	11,667	11,307
Total Liabilities	19,582	13,222
Commitments and Contingencies
Stockholders' Equity
Common stock; $0.01 par value; 500,000,000 shares authorized; 423,547,174 and 423,057,848 shares issued; and 243,753,899 and 244,231,933 shares outstanding at December 31, 2021 and 2020, respectively	4	4
Additional paid-in capital	8,531	8,517
Retained earnings/(accumulated deficit)	464	(1,403)
Treasury stock, at cost; 179,793,275 and 178,825,915 shares at December 31, 2021 and 2020, respectively	(5,273)	(5,232)
Accumulated other comprehensive loss	(126)	(206)
Total Stockholders' Equity	3,600	1,680
Total Liabilities and Stockholders' Equity	$ 23,182	$ 14,902