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Debt - Schedule of ABS Notes Transactions (Details) - USD ($) $ in Millions	1 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Apr. 30, 2024	Jan. 31, 2024
Debt Instrument [Line Items]
Basis spread on variable rate	5.342%
Asset Backed Notes
Debt Instrument [Line Items]
Principal Amount Issued	$ 5,923
January 2024 ABS Notes
Debt Instrument [Line Items]
Principal Amount Issued				$ 1,915
January 2024 ABS Notes | A-1a Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument				5.00%
Expected Weighted-average Life to Maturity (in years)				1 year 11 months 1 day
Principal Amount Issued				$ 835
January 2024 ABS Notes | A-1b Senior class notes
Debt Instrument [Line Items]
Basis spread on variable rate				0.65%
Expected Weighted-average Life to Maturity (in years)				1 year 11 months 1 day
Principal Amount Issued				$ 279
January 2024 ABS Notes | B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument				5.24%
Expected Weighted-average Life to Maturity (in years)				1 year 11 months 1 day
Principal Amount Issued				$ 0
January 2024 ABS Notes | C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument				5.49%
Expected Weighted-average Life to Maturity (in years)				1 year 11 months 1 day
Principal Amount Issued				$ 51
January 2024 ABS Notes | A Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument				4.83%
Expected Weighted-average Life to Maturity (in years)				4 years 11 months 1 day
Principal Amount Issued				$ 668
January 2024 ABS Notes | B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument				5.08%
Expected Weighted-average Life to Maturity (in years)				4 years 11 months 1 day
Principal Amount Issued				$ 51
January 2024 ABS Notes | C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument				5.32%
Expected Weighted-average Life to Maturity (in years)				4 years 11 months 1 day
Principal Amount Issued				$ 31
April 2024 ABS Notes
Debt Instrument [Line Items]
Principal Amount Issued			$ 875
April 2024 ABS Notes | A-1a Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument			5.34%
Expected Weighted-average Life to Maturity (in years)			2 years 11 months 26 days
Principal Amount Issued			$ 605
April 2024 ABS Notes | A-1b Senior class notes
Debt Instrument [Line Items]
Basis spread on variable rate			0.58%
Expected Weighted-average Life to Maturity (in years)			2 years 11 months 26 days
Principal Amount Issued			$ 175
April 2024 ABS Notes | B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument			5.54%
Expected Weighted-average Life to Maturity (in years)			2 years 11 months 26 days
Principal Amount Issued			$ 59
April 2024 ABS Notes | C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument			5.73%
Expected Weighted-average Life to Maturity (in years)			2 years 11 months 26 days
Principal Amount Issued			$ 36
June 2024 ABS Notes
Debt Instrument [Line Items]
Principal Amount Issued		$ 1,176
June 2024 ABS Notes | A-1a Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		5.21%
Expected Weighted-average Life to Maturity (in years)		1 year 11 months 23 days
Principal Amount Issued		$ 289
June 2024 ABS Notes | A-1b Senior class notes
Debt Instrument [Line Items]
Basis spread on variable rate		0.55%
Expected Weighted-average Life to Maturity (in years)		1 year 11 months 23 days
Principal Amount Issued		$ 246
June 2024 ABS Notes | B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		5.40%
Expected Weighted-average Life to Maturity (in years)		1 year 11 months 23 days
Principal Amount Issued		$ 41
June 2024 ABS Notes | C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		5.60%
Expected Weighted-average Life to Maturity (in years)		1 year 11 months 23 days
Principal Amount Issued		$ 25
June 2024 ABS Notes | A Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		5.00%
Expected Weighted-average Life to Maturity (in years)		4 years 11 months 23 days
Principal Amount Issued		$ 512
June 2024 ABS Notes | B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		5.25%
Expected Weighted-average Life to Maturity (in years)		4 years 11 months 23 days
Principal Amount Issued		$ 39
June 2024 ABS Notes | C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument		5.49%
Expected Weighted-average Life to Maturity (in years)		4 years 11 months 23 days
Principal Amount Issued		$ 24
September 2024 ABS Notes
Debt Instrument [Line Items]
Principal Amount Issued	$ 1,957
September 2024 ABS Notes | A-1a Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	4.17%
Expected Weighted-average Life to Maturity (in years)	2 years 11 months 1 day
Principal Amount Issued	$ 1,069
September 2024 ABS Notes | A-1b Senior class notes
Debt Instrument [Line Items]
Basis spread on variable rate	0.67%
Expected Weighted-average Life to Maturity (in years)	2 years 11 months 1 day
Principal Amount Issued	$ 267
September 2024 ABS Notes | B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	4.42%
Expected Weighted-average Life to Maturity (in years)	2 years 11 months 1 day
Principal Amount Issued	$ 0
September 2024 ABS Notes | C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	4.67%
Expected Weighted-average Life to Maturity (in years)	2 years 11 months 1 day
Principal Amount Issued	$ 61
September 2024 ABS Notes | A Senior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	4.35%
Expected Weighted-average Life to Maturity (in years)	4 years 11 months 1 day
Principal Amount Issued	$ 535
September 2024 ABS Notes | B Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	4.60%
Expected Weighted-average Life to Maturity (in years)	4 years 11 months 1 day
Principal Amount Issued	$ 0
September 2024 ABS Notes | C Junior class notes
Debt Instrument [Line Items]
Stated interest rate on debt instrument	4.84%
Expected Weighted-average Life to Maturity (in years)	4 years 11 months 1 day
Principal Amount Issued	$ 25

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