Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
OPERATING ACTIVITIES
Net income (loss)	$ 46	$ (38)	$ 148
Adjustments to determine net cash provided by operating activities:
Depreciation and amortization	360	353	352
(Gain) loss on unrealized derivatives and other realized derivatives in investing activities, net	(15)	(27)	39
Gain on assets held for sale	(2)	0	(22)
Loss on sale of business	27	0	0
Loss on sale of assets	6	4	5
Impairment charges	2	25	7
Loss on extinguishment of debt	134	13	0
Deferred income taxes	4	(93)	(88)
Amortization of fair value adjustments, net	7	11	10
Equity in net loss of non-consolidated affiliates	8	3	5
Loss (gain) on foreign exchange remeasurement of debt	2	(2)	(5)
Amortization of debt issuance costs and carrying value adjustments	22	19	25
Other, net	3	0	1
Changes in assets and liabilities including assets and liabilities held for sale (net of effects from divestitures):
Accounts receivable	(154)	336	(54)
Inventories	(193)	268	(390)
Accounts payable	253	(327)	578
Other current assets	9	(12)	(27)
Other current liabilities	10	7	66
Other noncurrent assets	(30)	20	7
Other noncurrent liabilities	76	(19)	(53)
Net cash provided by operating activities	575	541	604
INVESTING ACTIVITIES
Capital expenditures	(224)	(370)	(518)
Proceeds from sales of assets, third party, net of transaction fees and hedging	4	3	117
Outflows from the sale of business, net of transaction fees	(2)	0	0
Proceeds (outflows) from investment in and advances to non-consolidated affiliates, net	2	(2)	(20)
Proceeds (outflows) from settlement of other undesignated derivative instruments, net	8	(9)	5
Net cash used in investing activities	(212)	(378)	(416)
FINANCING ACTIVITIES
Proceeds from issuance of long-term and short-term borrowings	4,572	174	362
Principal payments of long-term and short-term borrowings	(4,477)	(216)	(324)
Revolving credit facilities and other, net	(229)	(187)	160
Return of capital to our common shareholder	0	0	(250)
Dividends, noncontrolling interest	0	(1)	(1)
Debt issuance costs	(191)	(15)	(3)
Net cash used in financing activities	(325)	(245)	(56)
Net increase (decrease) in cash and cash equivalents	38	(82)	132
Effect of exchange rate changes on cash	0	10	(13)
Cash and cash equivalents — beginning of period	556	628	509
Cash and cash equivalents — end of period	$ 594	$ 556	$ 628