Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Changes in assets and liabilities
Accounts receivable	$ 224	$ 326
Accounts payable	(21)	(127)
Other current assets	(49)	13
Other current liabilities	(12)	(182)
Total	142	30
Interest paid, net of capitalized interest	215	64
Income taxes paid (refunds received), net	67	(2)
Supplemental disclosure of significant non-cash investing and financing activities:
Change in accrued drilling and completion costs	141	(72)
Operating lease obligations recognized	$ 33	$ 0