Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
OPERATING ACTIVITIES
Net income	$ 73	$ 37
Adjustments to determine net cash (used in) provided by operating activities:
Depreciation and amortization	179	156
Loss on unrealized derivatives and other realized derivatives in investing activities, net	14	14
Gain on assets held for sale	(11)	0
Deferred income taxes	(18)	(20)
Amortization of fair value adjustments	6	6
Equity in net loss of non–consolidated affiliates	2	7
(Gain) loss on foreign exchange remeasurement of debt	(3)	2
Loss on sale of assets	3	2
Impairment charges	0	8
Amortization of debt issuance costs and carrying value adjustment	13	13
Other, net	(1)	(2)
Changes in assets and liabilities including assets and liabilities held for sale (net of effects from divestitures):
Accounts receivable	(187)	163
Inventories	(369)	20
Accounts payable	295	(213)
Other current assets	(29)	39
Other current liabilities	27	10
Other noncurrent assets	(2)	(6)
Other noncurrent liabilities	(5)	12
Net cash (used in) provided by operating activities	(13)	248
INVESTING ACTIVITIES
Capital expenditures	(264)	(365)
Proceeds from sales of assets, net of transaction fees	34	0
Proceeds from the sale of assets, related party, net of transaction fees	0	8
(Outflows) proceeds from investment in and advances to affiliates, net	(11)	0
Proceeds from settlement of other undesignated derivative instruments, net	3	6
Net cash used in investing activities	(238)	(351)
FINANCING ACTIVITIES
Proceeds from issuance of long-term and short-term borrowings	198	76
Principal payments of long-term and short-term borrowings	(126)	(59)
Revolving credit facilities and other, net	248	131
Return of capital to our common shareholder	(250)	0
Dividends, noncontrolling interest	(1)	0
Debt issuance costs	0	(8)
Net cash provided by financing activities	69	140
Net (decrease) increase in cash and cash equivalents	(182)	37
Effect of exchange rate changes on cash	(1)	0
Cash and cash equivalents — beginning of period	509	301
Cash and cash equivalents — end of period	$ 326	$ 338