Consolidated Statement of Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Financing revenues:
Operating lease	$ 4,748	$ 4,693	$ 4,888
Retail	2,062	2,371	2,791
Dealer	434	365	385
Total financing revenues	7,244	7,429	8,064
Depreciation on operating leases	3,568	3,339	3,353
Interest expense	940	1,300	1,614
Net financing revenues	2,736	2,790	3,097
Insurance earned premiums and contract revenues	571	604	543
Investment and other income, net	173	113	236
Net financing revenues and other revenues	3,480	3,507	3,876
Expenses:
Provision for credit losses	121	(98)	(433)
Operating and administrative	911	857	1,059
Insurance losses and loss adjustment expenses	293	325	247
Total expenses	1,325	1,084	873
Income before income taxes	2,155	2,423	3,003
Provision for income taxes	824	937	1,150
Net income	$ 1,331	$ 1,486	$ 1,853