Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Loss Contingencies [Line Items]
Legal Fees (Recoveries), net	$ 12	$ 9
Repurchase Reserve	76		$ 79
Litigation and regulatory matters | Min
Loss Contingencies [Line Items]
Estimate of possible loss	1
Litigation and regulatory matters | Max
Loss Contingencies [Line Items]
Estimate of possible loss	$ 3