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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:    
Consolidated net income $ 4,032 $ 4,464
Adjustments to reconcile consolidated net income to net cash flows from operating activities:    
Depreciation and amortization 6,508 6,711
Stock compensation expense 540 360
Noncash interest, net 13 (12)
Deferred income taxes (46) 165
Other, net 212 (113)
Changes in operating assets and liabilities, net of effects from acquisitions and dispositions:    
Accounts receivable (11) (262)
Prepaid expenses and other assets (534) (96)
Accounts payable, accrued liabilities and other (136) (79)
Net cash flows from operating activities 10,578 11,138
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property, plant and equipment (8,259) (6,456)
Change in accrued expenses related to capital expenditures 110 284
Other, net (334) (174)
Net cash flows from investing activities (8,483) (6,346)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Borrowings of long-term debt 14,591 21,528
Repayments of long-term debt (14,385) (15,659)
Payments for debt issuance costs (18) (71)
Purchase of treasury stock (2,021) (9,245)
Proceeds from exercise of stock options 21 5
Purchase of noncontrolling interest (254) (1,379)
Distributions to noncontrolling interest (118) (56)
Other, net 15 (36)
Net cash flows from financing activities (2,169) (4,913)
NET DECREASE IN CASH AND CASH EQUIVALENTS (74) (121)
CASH AND CASH EQUIVALENTS, beginning of period 645 601
CASH AND CASH EQUIVALENTS, end of period 571 480
CASH PAID FOR INTEREST 3,666 3,251
CASH PAID FOR TAXES $ 1,149 $ 882