Summary of Significant Accounting Policies - R&D and Recently Adopted Accounting Standards (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Research and Development
Research and development expense	$ 210	$ 191	$ 134
Recently issued accounting standards
Total equity	5,014	4,434	3,828	$ 3,601
Cumulative Effect, Period of Adoption, Adjustment
Recently issued accounting standards
Total equity				(3)
Cumulative Effect, Period of Adoption, Adjustment | Allowance for Credit Losses
Recently issued accounting standards
Total equity				3
Retained Earnings
Recently issued accounting standards
Total equity	$ 5,417	$ 4,847	$ 4,287	4,030
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment
Recently issued accounting standards
Total equity				$ (3)