Employee Benefits - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
U.K.
Defined Benefit Plan Disclosure [Line Items]
Non-cash settlement charge	$ 0	$ 0		$ 0	$ 0
Expected future employer cash contribution	2			2
Other
Defined Benefit Plan Disclosure [Line Items]
Non-cash settlement charge	0	0	$ 27	0	27
Expected future employer cash contribution	13			13
U.S.
Defined Benefit Plan Disclosure [Line Items]
Non-cash settlement charge	0	$ 0		0	$ 0
Expected future employer cash contribution	$ 53			$ 53