Consolidated Statement of Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Financing revenues:
Operating lease	$ 4,693	$ 4,888	$ 4,739
Retail	2,371	2,791	3,086
Dealer	365	385	338
Total financing revenues	7,429	8,064	8,163
Depreciation on operating leases	3,339	3,353	3,564
Interest expense	1,300	1,614	2,023
Net financing revenues	2,790	3,097	2,576
Insurance earned premiums and contract revenues	604	543	452
Investment and other income, net	113	236	228
Net financing revenues and other revenues	3,507	3,876	3,256
Expenses:
Provision for credit losses	(98)	(433)	604
Operating and administrative	857	1,059	760
Insurance losses and loss adjustment expenses	325	247	213
Total expenses	1,084	873	1,577
Income before income taxes	2,423	3,003	1,679
Provision for income taxes	937	1,150	616
Net income	$ 1,486	$ 1,853	$ 1,063