Derivative Financial Instruments - Narrative (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Derivative [Line Items]
Potential recoveries		$ 0
Contingent consideration term		10 years
Other assets, net	$ 6,351,000,000	$ 6,351,000,000	$ 6,086,000,000
Term of credit default swaps (in years)		5 years
Contingent consideration
Derivative [Line Items]
Other assets, net	108,000,000	$ 108,000,000
Gain on derivative	$ 31,000,000	$ 43,000,000