Employee Benefits - Schedule of Employer Contributions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	$ 28	$ 30
U.K.
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	0	1
Other
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	2	2
U.S.
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	$ 26	$ 27