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Segment Information - Narrative (Details) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2025 USD ($) segment	Sep. 30, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment				7
Operating income	$ 1,112	$ 1,052		$ 3,131	$ 3,233
Unallocated
Segment Reporting Information [Line Items]
Operating income	$ (26)	$ (25)		$ (94)	58
Change in Accounting Method Accounted for as Change in Estimate | Unallocated
Segment Reporting Information [Line Items]
Operating income			$ 117		$ 117

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