Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$ 932	$ 1,197	$ 857
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,965	4,895	4,045
Recognition of deferred income	(1,713)	(1,539)	(1,278)
Provision for credit losses	441	308	170
Amortization of deferred costs	672	628	589
Foreign currency and other adjustments to the carrying value of debt, net	1,143	(2,380)	(205)
Net realized gains from sales and other-than-temporary impairment on securities	(6)	(70)	0
Gain on sale of commercial finance business	(197)
Net change in:
Restricted cash and cash equivalents	(226)	(140)	(153)
Derivative assets	(15)	(4)	9
Other assets (Note 8) and accrued interest	66	(350)	87
Deferred income taxes	531	760	516
Derivative liabilities	(83)	84	(11)
Other liabilities	329	378	248
Net cash provided by operating activities	7,839	3,767	4,874
Cash flows from investing activities:
Purchase of investments in marketable securities	(7,447)	(6,164)	(5,114)
Proceeds from sales of investments in marketable securities	914	991	596
Proceeds from maturities of investments in marketable securities	7,026	3,529	4,510
Acquisition of finance receivables	(24,956)	(25,584)	(25,790)
Collection of finance receivables	24,523	24,602	23,961
Net change in wholesale and certain working capital receivables	(512)	222	(804)
Acquisition of investments in operating leases	(19,917)	(16,969)	(14,410)
Disposals of investments in operating leases	8,283	6,444	6,636
Proceeds from sale of commercial finance business	2,317
Net change in financing support provided to affiliates	7	(12)	(241)
Cash equivalents un-restricted (restricted) to acquire finance receivables and investment in operating leases, net	0	1,077	(1,077)
Other, net	(68)	(57)	(45)
Net cash used in investing activities	(9,830)	(11,921)	(11,778)
Cash flows from financing activities:
Proceeds from issuance of debt	25,564	25,817	20,226
Payments on debt	(22,865)	(17,934)	(16,662)
Net change in commercial paper	(410)	(704)	3,123
Net change in financing support provided by affiliates	(4)	2	(26)
Dividend paid to TFSA	0	(435)	(665)
Net cash provided by financing activities	2,285	6,746	5,996
Net increase (decrease) in cash and cash equivalents	294	(1,408)	(908)
Cash and cash equivalents at the beginning of the period	2,407	3,815	4,723
Cash and cash equivalents at the end of the period	2,701	2,407	3,815
Supplemental disclosures:
Interest paid	1,190	1,048	1,102
Income taxes (received) paid, net	$ (95)	$ 143	$ (30)