Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 282	$ 404
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,439	3,303
Recognition of deferred income	(951)	(877)
Provision for credit losses	212	213
Amortization of deferred costs	307	315
Foreign currency and other adjustments to the carrying value of debt, net	1,035	(114)
Net realized gains on available-for-sale securities	(42)	(83)
Net change in:
Restricted cash	59	7
Derivative assets	(11)	23
Other assets (Note 8) and accrued interest	(154)	(179)
Deferred income taxes	224	203
Derivative liabilities	(30)	(2)
Other liabilities	11	124
Net cash provided by operating activities	4,381	3,337
Cash flows from investing activities:
Purchase of investments in marketable securities	(5,757)	(2,209)
Proceeds from sales of investments in marketable securities	1,248	407
Proceeds from maturities of investments in marketable securities	4,107	1,711
Acquisition of finance receivables	(12,638)	(12,572)
Collection of finance receivables	12,004	12,173
Net change in wholesale and certain working capital receivables	1,651	466
Acquisition of investments in operating leases	(8,612)	(9,595)
Disposals of investments in operating leases	4,938	5,427
Net change in financing support provided to affiliates	232	973
Cash equivalents (restricted) to acquire finance receivables and investment in operating leases, net	0	(147)
Other, net	(37)	(32)
Net cash used in investing activities	(2,864)	(3,398)
Cash flows from financing activities:
Proceeds from issuance of debt	11,707	13,089
Payments on debt	(11,380)	(13,576)
Net change in commercial paper	(1,371)	1,093
Net change in financing support provided by affiliates	11	(9)
Net cash (used in) provided by financing activities	(1,033)	597
Net increase in cash and cash equivalents	484	536
Cash and cash equivalents at the beginning of the period	4,198	2,701
Cash and cash equivalents at the end of the period	4,682	3,237
Supplemental disclosures:
Interest paid, net	851	684
Income taxes paid (received), net	$ 85	$ (5)