Debt Under Vehicle Programs and Borrowing Arrangements (Schedule of Contractual Maturities) (Details) - Deferred Financing Fees $ in Millions	Jun. 30, 2024 USD ($)
Debt Instrument [Line Items]
Within 1 year	$ 2,874
Between 1 and 2 years	5,347
Between 2 and 3 years	5,324
Between 3 and 4 years	2,576
Between 4 and 5 years	2,570
Thereafter	935
Total	19,626
Bank And Bank-Sponsored Facilities
Debt Instrument [Line Items]
Within 1 year	1,100
Between 1 and 2 years	2,600
Between 2 and 3 years	2,000
Between 3 and 4 years	$ 100