Goodwill and Other Intangible Assets - Additional Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) reporting_unit	Sep. 30, 2022 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of reporting units | reporting_unit			1
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Intangible assets, gross (including goodwill)	$ 11,400		$ 11,400
Amortization expense	$ 17	$ 20	$ 50	$ 59
Minimum | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Market multiple (ratio)	1.5		1.5
Minimum | EBITDA Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Market multiple (ratio)	4.6		4.6
Maximum | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Market multiple (ratio)	4.3		4.3
Maximum | EBITDA Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Market multiple (ratio)	10.5		10.5