Income Taxes (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Effective tax rate on income before income taxes (percentage)	8.80%	3.00%
Tax benefit from equity compensation windfall benefits	$ 6
Tax benefit from change in valuation allowance on certain UK deferred tax assets		$ 37
Decrease in effective tax rate due to equity compensation windfall benefits	0.30%
Decrease in effective tax rate due to change in valuation allowance on certain UK deferred tax assets		5.70%
Net deferred tax asset	$ 496		$ 531
Income taxes paid	$ 127	$ 202