CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Consolidated net income	$ 1,183	$ 1,389
Adjustments to reconcile consolidated net income to net cash flows from operating activities:
Depreciation and amortization	2,206	2,294
Stock compensation expense	208	147
Noncash interest income, net	(3)	(3)
Deferred income taxes	(23)	38
Other, net	104	(21)
Changes in operating assets and liabilities, net of effects from acquisitions and dispositions:
Accounts receivable	70	49
Prepaid expenses and other assets	(336)	(185)
Accounts payable, accrued liabilities and other	(86)	(61)
Net cash flows from operating activities	3,323	3,647
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(2,464)	(1,857)
Change in accrued expenses related to capital expenditures	(195)	10
Other, net	(80)	60
Net cash flows from investing activities	(2,739)	(1,787)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	7,104	6,713
Repayments of long-term debt	(6,740)	(2,954)
Payments for debt issuance costs	(18)	(37)
Purchase of treasury stock	(912)	(3,333)
Proceeds from exercise of stock options	2	1
Purchase of noncontrolling interest	(122)	(416)
Distributions to noncontrolling interest	(3)	(2)
Other, net	(6)	(2)
Net cash flows from financing activities	(695)	(30)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(111)	1,830
CASH AND CASH EQUIVALENTS, beginning of period	645	601
CASH AND CASH EQUIVALENTS, end of period	534	2,431
CASH PAID FOR INTEREST	1,189	982
CASH PAID FOR TAXES	$ 61	$ 29