Investments in Operating Leases, Net - Investments in Operating Leases, Net (Details) - USD ($) $ in Millions		Mar. 31, 2023	Mar. 31, 2022
Property Subject To Or Available For Operating Lease [Line Items]
Investments in operating leases, net		$ 29,869	$ 35,455
Investments in operating leases [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Investments in operating leases	[1]	38,811	45,682
Investments In Operating Leases, Net [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Deferred income		(694)	(1,272)
Accumulated depreciation		$ (8,248)	$ (8,955)

[1] Includes securitized investments in operating leases of $15.3 billion and $16.2 billion as of March 31, 2023 and 2022, respectively.