Debt - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Secured Debt
Debt [Line Items]
Weighted average interest rate (as a percent)	5.32%
Issuance costs	$ 82,000,000	$ 84,000,000
Secured Debt | Securitization notes payable
Debt [Line Items]
Weighted average interest rate (as a percent)	5.60%
Face amount of debt	$ 23,600,000,000
Secured Debt | Revolving credit facilities
Debt [Line Items]
Renewed credit facilities	$ 20,800,000,000
Secured Debt | Maximum | Revolving credit facilities
Debt [Line Items]
Expiration period (in years)	6 years
Senior Notes
Debt [Line Items]
Weighted average interest rate (as a percent)	3.82%
Face amount of debt	$ 51,200,000,000
Senior Notes | Senior Notes with Maturity Dates from 2026 to 2034
Debt [Line Items]
Weighted average interest rate (as a percent)	5.70%
Face amount of debt	$ 11,400,000,000
Unsecured Debt
Debt [Line Items]
Issuance costs	$ 125,000,000	$ 113,000,000
Line of Credit
Debt [Line Items]
Weighted average interest rate (as a percent)	7.82%
Debt instrument term (in years)	5 years