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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Cash Flows from Operating Activities    
Net Income/(Loss) $ 511 $ (1,335)
Adjustments to reconcile net income/(loss) to cash provided/(used) by operating activities:    
Equity in and distributions from earnings of unconsolidated affiliates (2) (5)
Depreciation and amortization 268 190
Accretion of asset retirement obligations 4 6
Provision for credit losses 75 35
Amortization of nuclear fuel 0 13
Amortization of financing costs and debt discounts 11 20
Loss on debt extinguishment 58 0
Amortization of in-the-money contracts and emissions allowances 78 119
Amortization of unearned equity compensation 30 30
Net loss/(gain) on sale of assets and disposal of assets 9 (187)
Changes in derivative instruments (535) 1,599
Changes in current and deferred income taxes and liability for uncertain tax benefits 139 (338)
Changes in collateral deposits in support of risk management activities 289 (1,412)
Changes in nuclear decommissioning trust liability 0 (16)
Changes in other working capital (668) (317)
Cash provided/(used) by operating activities 267 (1,598) CloseClose
Cash Flows from Investing Activities    
Payments for acquisitions of businesses and assets, net of cash acquired (22) (2,492)
Capital expenditures (69) (142)
Net purchases of emissions allowances (7) (18)
Investments in nuclear decommissioning trust fund securities 0 (87)
Proceeds from the sale of nuclear decommissioning trust fund securities 0 99
Proceeds from sales of assets, net of cash disposed 3 219
Proceeds from insurance recoveries for property, plant and equipment, net 3 71
Cash used by investing activities (92) (2,350) CloseClose
Cash Flows from Financing Activities    
Proceeds from issuance of preferred stock, net of fees 0 636
Payments of dividends to preferred and common stockholders (118) (87)
Equivalent shares purchased in lieu of tax withholdings (23) (8)
Net receipts from settlement of acquired derivatives that include financing elements 8 336
Net proceeds of Revolving Credit Facility and Receivable Securitization Facilities 0 725
Proceeds from issuance of long-term debt 0 731
Payments of debt issuance costs 0 (18)
Repayments of long-term debt and finance leases (97) (4)
Payments for debt extinguishment costs (58) 0
Proceeds from credit facilities 525 1,050
Repayments to credit facilities (525) (825)
Cash (used)/provided by financing activities (288) 2,536
Effect of exchange rate changes on cash and cash equivalents (2) 3 CloseClose
Net Decrease in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash (115) (1,409) CloseClose
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period 649 2,178
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period $ 534 $ 769