Income Taxes - Deferred Income Tax Valuation Allowance Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred Tax Assets Valuation Allowance [Roll Forward]
Beginning balance of deferred income tax valuation allowance	$ 92	$ 99	$ 95
Charges against goodwill	102	0	0
Increases/(Decreases)	(28)	(7)	4
Ending balance of deferred income tax valuation allowance	$ 166	$ 92	$ 99