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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Cash flows from operating activities      
Net income (loss) $ 1,553.5 $ 1,579.3 $ 1,531.4
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
Amortization in interest expense 14.8 13.2 10.5
Compensation on equity grants 63.2 62.4 57.5
Depreciation and amortization expense 1,423.0 1,329.6 1,096.0
(Gain) loss on sale or disposition of assets (3.1) (5.3) (9.6)
Write-downs of assets 6.2 6.9 9.8
Accretion of asset retirement obligations 10.6 5.9 4.8
Deferred income tax expense (benefit) 367.0 349.6 125.1
Equity (earnings) loss of unconsolidated affiliates (9.4) (9.0) (9.1)
Distributions of earnings received from unconsolidated affiliates 19.8 13.1 12.2
Risk management activities 164.6 (275.4) 302.5
(Gain) loss from financing activities 0.8 2.1 49.6
(Gain) loss from sale of equity-method investment     (435.9)
Changes in operating assets and liabilities, net of acquisitions:      
Receivables and other assets (75.0) (20.6) 219.7
Inventories 33.5 36.0 (236.2)
Accounts payable, accrued liabilities and other liabilities 40.7 68.2 (383.0)
Interest payable 39.5 55.6 35.5
Net cash provided by (used in) operating activities 3,649.7 3,211.6 2,380.8
Cash flows from investing activities      
Outlays for property, plant and equipment (2,965.8) (2,385.4) (1,334.3)
Outlays for business acquisition, net of cash acquired     (3,503.9)
Outlays for asset acquisition, net of cash acquired     (205.2)
Proceeds from sale of assets 3.3 4.7 23.0
Investments in unconsolidated affiliates (62.9) (24.6) (1.5)
Proceeds from sale of equity-method investment     857.0
Return of capital from unconsolidated affiliates 5.5 5.5 16.8
Other, net (1.4) (1.0) (1.6)
Net cash provided by (used in) investing activities (3,021.3) (2,400.8) (4,149.7)
Debt obligations:      
Proceeds from borrowings under credit facilities     5,845.0
Repayments of credit facilities   (290.0) (5,555.0)
Proceeds from borrowings of commercial paper notes 85,430.5 59,002.8 30,504.3
Repayments of commercial paper notes (84,475.0) (59,836.5) (29,495.6)
Proceeds from borrowings under term loan facility     1,500.0
Repayments of term loan facility (500.0) (1,000.0)  
Proceeds from borrowings under accounts receivable securitization facility 775.0 143.1 1,230.0
Repayments of accounts receivable securitization facility (1,020.0) (368.1) (580.0)
Proceeds from issuance of senior unsecured notes 999.4 3,727.7 2,741.4
Redemption of senior unsecured notes     (1,473.2)
Principal payments of finance leases (50.1) (42.9) (19.7)
Costs incurred in connection with financing arrangements (9.9) (36.1) (45.7)
Repurchases of common stock (754.7) (373.7) (224.8)
Shares tendered for tax withholding obligations (56.4) (55.8) (35.8)
Contributions from noncontrolling interests 12.0 9.7 26.1
Distributions to noncontrolling interests (232.6) (222.1) (316.4)
Repurchase of noncontrolling interests (112.9) (1,118.9) (926.3)
Redemption of Series A Preferred Stock     (965.2)
Dividends paid to common and Series A Preferred shareholders (615.5) (427.3) (379.7)
Other, net (2.6)    
Net cash used in financing activities (612.8) (888.1) 1,829.4
Net change in cash and cash equivalents 15.6 (77.3) 60.5
Cash and cash equivalents, beginning of period 141.7 219.0 158.5
Cash and cash equivalents, end of period $ 157.3 $ 141.7 $ 219.0