Consolidated Statement of Cash Flows (Unaudited) - Williams - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
OPERATING ACTIVITIES:
Net income (loss)	$ 729	$ 662
Adjustments to reconcile to net cash provided (used) by operating activities:
Depreciation, depletion, and amortization	585	548
Provision (benefit) for deferred income taxes	107	152
Equity (earnings) losses	(155)	(137)
Distributions from equity-method investees	158	188
Net unrealized (gain) loss from commodity derivative instruments	32	92
Inventory write-downs	1	4
Amortization of stock-based awards	30	24
Cash provided (used) by changes in current assets and liabilities:
Accounts receivable	82	314
Inventories	28	34
Other current assets and deferred charges	(40)	9
Accounts payable	(29)	(309)
Other current liabilities	(70)	(218)
Changes in current and noncurrent commodity derivative assets and liabilities	4	(68)
Other, including changes in noncurrent assets and liabilities	(29)	(61)
Net cash provided (used) by operating activities	1,433	1,234
FINANCING ACTIVITIES:
Proceeds from (payments of) commercial paper – net	(132)	(723)
Proceeds from long-term debt	1,497	2,099
Payments of long-term debt	(853)	(1,012)
Payments for debt issuance costs	(12)	(16)
Proceeds from issuance of common stock	5	5
Common dividends paid	(610)	(579)
Dividends and distributions paid to noncontrolling interests	(69)	(64)
Contributions from noncontrolling interests	5	26
Other – net	(54)	(17)
Net cash provided (used) by financing activities	(223)	(281)
INVESTING ACTIVITIES:
Capital expenditures (1)	(1,012)	(544)
Dispositions – net	0	5
Purchases of businesses, net of cash acquired (Note 3)	(1)	(1,851)
Purchases of and contributions to equity-method investments	(163)	(52)
Other – net	6	6
Net cash provided (used) by investing activities	(1,170)	(2,436)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	40	(1,483)
Cash and cash equivalents at beginning of year	60	2,150
Cash and cash equivalents at end of period	100	667
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]
(1)  Increases to property, plant, and equipment	(978)	(509)
Changes in related accounts payable and accrued liabilities	(34)	(35)
Capital expenditures	$ (1,012)	$ (544)