Debt Under Vehicle Programs and Borrowing Arrangements (Schedule of Contractual Maturities) (Details) - Deferred Financing Fees $ in Millions	Jun. 30, 2023 USD ($)
Debt Instrument [Line Items]
Within 1 year	$ 2,995
Between 1 and 2 years	6,723
Between 2 and 3 years	2,811
Between 3 and 4 years	2,816
Between 4 and 5 years	1,783
Thereafter	715
Total	17,843
Bank And Bank-Sponsored Facilities
Debt Instrument [Line Items]
Within 1 year	1,500
Between 1 and 2 years	4,900
Between 2 and 3 years	$ 100