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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Cash Flows from Operating Activities    
Net Income $ 798 $ 482
Adjustments to reconcile net income to cash provided by operating activities:    
Depreciation of property, plant and equipment and amortization of customer relationships and other intangible assets 667 814
Amortization of capitalized contract costs 363 231
Accretion of asset retirement obligations 22 29
Provision for credit losses 201 228
Amortization of financing costs and debt discounts 24 32
Loss on debt extinguishment 10 260
Amortization of in-the-money contracts and emissions allowances 75 83
Amortization of unearned equity compensation 83 82
Net loss/(gain) on sale of assets and disposal of assets 7 (197)
Gain on proceeds from insurance recoveries for property, plant and equipment, net (100) 0
Impairment losses 0 15
Changes in derivative instruments 447 268
Changes in current and deferred income taxes and liability for uncertain tax benefits 209 134
Changes in collateral deposits in support of risk management activities 76 (80)
Equity in and distributions from earnings of unconsolidated affiliates (2) (6)
Changes in other working capital (1,090) (1,021)
Cash provided by operating activities 1,790 1,354
Cash Flows from Investing Activities    
Payments for acquisitions of businesses and assets (591) (33)
Capital expenditures (849) (286)
Net purchases of emissions allowances (6) (16)
Proceeds from sales of assets 6 495
Proceeds from insurance recoveries for property, plant and equipment, net 100 3
Cash (used)/provided by investing activities (1,340) 163
Cash Flows from Financing Activities    
Payments of dividends to preferred and common stockholders (326) (322)
Equivalent shares purchased in lieu of tax withholdings (86) (45)
Payments for share repurchase activity and excise tax (958) (316)
Payment for settlement of capped call options (292) 0
Net receipts/(payments) from settlement of acquired derivatives that include financing elements 51 (2)
Proceeds from issuance of long-term debt 1,375 875
Payments of deferred financing costs (55) (13)
Repayments of long-term debt and finance leases (249) (960)
Payments for debt extinguishment costs 0 (258)
Proceeds from credit facilities 1,575 1,050
Repayments to credit facilities (1,575) (1,050)
Cash used by financing activities (540) (1,041)
Effect of exchange rate changes on cash and cash equivalents 2 1
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash (88) 477
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period 1,173 649
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period $ 1,085 $ 1,126