Employee Benefits - Schedule of Employer Contributions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	$ 9	$ 10	$ 40	$ 50
U.K.
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	1	1	3	6
Other
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	2	2	10	12
U.S.
Defined Benefit Plan Disclosure [Line Items]
Company’s benefit pension plans	$ 6	$ 7	$ 27	$ 32