Employee Benefits - Schedule of Employer Contributions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	$ 17	$ 23
U.K.
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	1	1
Other
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	2	6
U.S.
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	$ 14	$ 16