Equity Method Investments and Variable Interest Entities - Schedule of Income (Losses) of Equity Method Investments (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Equity Method Investments and Joint Ventures [Abstract]
Equity method income (losses)	$ 0	$ (5)	$ (21)	$ (9)

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration