Debt - Schedule of Repayments (Details)	Jun. 30, 2025 USD ($)
Debt Instrument [Line Items]
Principal amount redeemed	$ 3,000,000,000
Principal amount repaid	$ 736,000,000
8.750% Senior Notes due 2032
Debt Instrument [Line Items]
Interest rate, stated percentage	4.91%
Principal amount repaid	$ 378,000,000
Senior Notes \| 3.500% Senior Notes due 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	3.50%
Principal amount redeemed	$ 3,000,000,000
Senior Notes \| 4.740% Class A Senior ABS Notes due 2029
Debt Instrument [Line Items]
Interest rate, stated percentage	4.738%
Principal amount repaid	$ 131,000,000
Senior Notes \| 5.152% Series 2018-1 A-2 Notes due 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	5.152%
Principal amount repaid	$ 184,000,000
Loans Payable \| ECA Facility due 2036
Debt Instrument [Line Items]
Principal amount repaid	$ 43,000,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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