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