Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Loss Contingencies [Line Items]
Legal Fees (Recoveries), net	$ 7	$ 12	$ 19	$ 21
Repurchase Reserve	72		72		$ 79
Litigation and regulatory matters | Min
Loss Contingencies [Line Items]
Estimate of possible loss	1		1
Litigation and regulatory matters | Max
Loss Contingencies [Line Items]
Estimate of possible loss	$ 15		$ 15