Debt - Schedule of ABS Notes Transactions (Details) - USD ($) $ in Millions	1 Months Ended
	Sep. 30, 2026	Jun. 30, 2026	Mar. 31, 2026
Debt Instrument [Line Items]
Basis spread on variable rate	3.648%
Asset Backed Notes
Debt Instrument [Line Items]
Principal Amount Issued	$ 3,738
March 2026 ABS Notes
Debt Instrument [Line Items]
Principal Amount Issued			$ 1,538
March 2026 ABS Notes \| A-1a Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument			3.94%
Expected Weighted-average Life to Maturity (in years)			1 year 11 months 8 days
Principal Amount Issued			$ 1,103
March 2026 ABS Notes \| A-1b Senior class notes
Debt Instrument [Line Items]
Basis spread on variable rate			0.40%
Expected Weighted-average Life to Maturity (in years)			1 year 11 months 8 days
Principal Amount Issued			$ 368
March 2026 ABS Notes \| B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument			4.19%
Expected Weighted-average Life to Maturity (in years)			1 year 11 months 8 days
Principal Amount Issued			$ 0
March 2026 ABS Notes \| C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument			4.43%
Expected Weighted-average Life to Maturity (in years)			1 year 11 months 8 days
Principal Amount Issued			$ 67
June 2026 ABS Notes
Debt Instrument [Line Items]
Principal Amount Issued		$ 1,200
June 2026 ABS Notes \| A-1a Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		4.51%
Expected Weighted-average Life to Maturity (in years)		2 years 11 months 19 days
Principal Amount Issued		$ 994
June 2026 ABS Notes \| A-1b Senior class notes
Debt Instrument [Line Items]
Basis spread on variable rate		0.46%
Expected Weighted-average Life to Maturity (in years)		2 years 11 months 19 days
Principal Amount Issued		$ 75
June 2026 ABS Notes \| B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		4.71%
Expected Weighted-average Life to Maturity (in years)		2 years 11 months 19 days
Principal Amount Issued		$ 82
June 2026 ABS Notes \| C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		4.85%
Expected Weighted-average Life to Maturity (in years)		2 years 11 months 19 days
Principal Amount Issued		$ 49
September 2026 ABS Notes
Debt Instrument [Line Items]
Principal Amount Issued	$ 1,000
September 2026 ABS Notes \| A-1a Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	5.14%
Expected Weighted-average Life to Maturity (in years)	2 years 10 months 28 days
Principal Amount Issued	$ 826
September 2026 ABS Notes \| A-1b Senior class notes
Debt Instrument [Line Items]
Basis spread on variable rate	0.45%
Expected Weighted-average Life to Maturity (in years)	2 years 10 months 28 days
Principal Amount Issued	$ 65
September 2026 ABS Notes \| B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	5.34%
Expected Weighted-average Life to Maturity (in years)	2 years 10 months 28 days
Principal Amount Issued	$ 68
September 2026 ABS Notes \| C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	5.48%
Expected Weighted-average Life to Maturity (in years)	2 years 10 months 28 days
Principal Amount Issued	$ 41