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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:    
Consolidated net income $ 2,596 $ 3,097
Adjustments to reconcile consolidated net income to net cash flows from operating activities:    
Depreciation and amortization 4,378 4,534
Stock compensation expense 376 251
Noncash interest, net 4 (7)
Deferred income taxes (63) 115
Other, net 187 (153)
Changes in operating assets and liabilities, net of effects from acquisitions and dispositions:    
Accounts receivable 57 (200)
Prepaid expenses and other assets (361) (133)
Accounts payable, accrued liabilities and other (540) (123)
Net cash flows from operating activities 6,634 7,381
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property, plant and equipment (5,298) (4,050)
Change in accrued expenses related to capital expenditures (4) 128
Other, net (287) (160)
Net cash flows from investing activities (5,589) (4,082)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Borrowings of long-term debt 11,048 16,631
Repayments of long-term debt (10,735) (11,947)
Payments for debt issuance costs (18) (57)
Purchase of treasury stock (1,238) (7,020)
Proceeds from exercise of stock options 5 5
Purchase of noncontrolling interest (176) (994)
Distributions to noncontrolling interest (83) (7)
Other, net (15) (28)
Net cash flows from financing activities (1,212) (3,417)
NET DECREASE IN CASH AND CASH EQUIVALENTS (167) (118)
CASH AND CASH EQUIVALENTS, beginning of period 645 601
CASH AND CASH EQUIVALENTS, end of period 478 483
CASH PAID FOR INTEREST 2,432 2,150
CASH PAID FOR TAXES $ 906 $ 470