Employee Benefits - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
U.K.
Defined Benefit Plan Disclosure [Line Items]
Non-cash settlement charge	$ 0		$ 0	$ 0	$ 0
Expected future employer cash contribution	7			7
Other
Defined Benefit Plan Disclosure [Line Items]
Non-cash settlement charge	0		0	0	0
Expected future employer cash contribution	15			15
U.S.
Defined Benefit Plan Disclosure [Line Items]
Non-cash settlement charge	0	$ 1	$ 0	1	$ 0
Expected future employer cash contribution	$ 52			$ 52