Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income	$ 3,358	$ 358
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,237	5,040
Recognition of deferred income	(1,467)	(1,328)
Provision for credit losses	320	396
Amortization of deferred costs	459	471
Foreign currency and other adjustments to the carrying value of debt, net	1,219	(1,065)
Net realized gains on available-for-sale securities	(45)	(240)
Net change in:
Restricted cash	147	117
Derivative assets	(27)	17
Other assets (Note 8) and accrued interest	(79)	(220)
Deferred income taxes	(2,520)	149
Derivative liabilities	(46)	(6)
Other liabilities	70	220
Net cash provided by operating activities	6,626	3,909
Cash flows from investing activities:
Purchase of investments in marketable securities	(6,501)	(2,837)
Proceeds from sales of investments in marketable securities	1,333	832
Proceeds from maturities of investments in marketable securities	4,757	2,770
Acquisition of finance receivables	(19,257)	(19,519)
Collection of finance receivables	18,003	18,151
Net change in wholesale and certain working capital receivables	758	(1,171)
Acquisition of investments in operating leases	(12,562)	(13,825)
Disposals of investments in operating leases	7,221	7,786
Net change in financing support provided to affiliates	244	288
Cash equivalents (restricted) to acquire finance receivables and investment in operating leases, net	(703)	0
Other, net	(53)	(63)
Net cash used in investing activities	(6,760)	(7,588)
Cash flows from financing activities:
Proceeds from issuance of debt	16,124	18,790
Payments on debt	(18,486)	(17,509)
Net change in commercial paper	1,407	2,388
Net change in financing support provided by affiliates	7	(6)
Net cash (used in) provided by financing activities	(948)	3,663
Net decrease in cash and cash equivalents	(1,082)	(16)
Cash and cash equivalents at the beginning of the period	4,198	2,701
Cash and cash equivalents at the end of the period	3,116	2,685
Supplemental disclosures:
Interest paid, net	1,302	1,031
Income taxes paid, net	$ 73	$ 42