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Financial Instruments - Derivative (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Cash and Cash Equivalents [Line Items]
Credit Derivative, Maximum Exposure, Undiscounted	$ 131
Cash and cash equivalents	4,318	$ 3,923
Restricted cash and cash equivalents	230	888
Restricted Cash and Cash Equivalents, Noncurrent	105	100
Total cash and cash equivalents and restricted cash and cash equivalents presented in the consolidated statements of cash flows	$ 4,653	4,911	$ 6,216	$ 6,063
Designated For Export Proceeds
Cash and Cash Equivalents [Line Items]
Restricted cash and cash equivalents		$ 700