Financial Instruments - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Euro-denominated debt instruments gain (loss)
Derivative Instruments, Gain (Loss) [Line Items]
Debt instruments gain (loss)	$ 22	$ (179)	$ 71	$ (249)
Cross-currency swaps (loss) gain
Derivative Instruments, Gain (Loss) [Line Items]
Debt instruments gain (loss)	$ (3)	$ (104)	$ 24	$ (129)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details