Consolidated Statement of Stockholders' Equity (Parenthetical) $ in Millions	3 Months Ended
Sep. 30, 2026 USD ($) transaction	Jun. 30, 2026 USD ($)	Mar. 31, 2026 USD ($) transaction	Sep. 30, 2025 USD ($) transaction	Jun. 30, 2025 USD ($)	Mar. 31, 2025 transaction
Statement of Stockholders' Equity [Abstract]
Tax effect on net change in fair value of derivative instruments	$ (2)	$ 2	$ (7)	$ (7)	$ 4
Number of purchase transactions \| transaction	1		2	2		1
Tax effect on net change in pension asset/liability				$ (1)	$ (1)

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

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