Consolidated Statement of Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Financing revenues:
Operating lease	$ 1,176	$ 1,178	$ 2,333	$ 2,382
Retail	525	610	1,057	1,236
Dealer	110	82	218	172
Total financing revenues	1,811	1,870	3,608	3,790
Depreciation on operating leases	880	829	1,735	1,654
Interest expense	283	149	341	606
Net financing revenues	648	892	1,532	1,530
Insurance earned premiums and contract revenues	145	153	295	303
Investment and other income, net	38	(9)	73	31
Net financing revenues and other revenues	831	1,036	1,900	1,864
Expenses:
Provision for credit losses	3	11	19	(192)
Operating and administrative	229	212	445	409
Insurance losses and loss adjustment expenses	73	83	154	169
Total expenses	305	306	618	386
Income before income taxes	526	730	1,282	1,478
Provision for income taxes	200	279	479	562
Net income	$ 326	$ 451	$ 803	$ 916