Variable Interest Entities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Restricted cash	$ 3,618
Finance receivables	85,771	$ 84,637
Lease related assets	30,106	30,582
Secured debt	44,212	45,243
Securitization and Credit Facility VIEs
Variable Interest Entity [Line Items]
Restricted cash	3,423	2,765
Finance receivables	44,566	46,648
Lease related assets	15,639	15,794
Secured debt	$ 44,271	$ 45,299