Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Current assets
Cash and cash equivalents	$ 509	$ 301	$ 317	$ 311
Accounts receivable, net
— third parties (net of allowances of $4 and $3 as of March 31, 2014 and March 31, 2013, respectively)	1,382	1,447
— related parties	54	38
Inventories	1,173	1,168
Prepaid expenses and other current assets	101	93
Fair value of derivative instruments	51	109
Deferred income tax assets	101	112
Assets held for sale	102	9
Total current assets	3,473	3,277
Property, plant and equipment, net	3,513	3,104
Goodwill	611	611
Intangible assets, net	640	649
Investment in and advances to non–consolidated affiliates	612	627
Deferred income tax assets	80	75
Other long–term assets
— third parties	173	166
— related parties	12	13
Total assets	9,114	8,522
Current liabilities
Current portion of long–term debt	92	30
Short–term borrowings	723	468
Accounts payable
— third parties	1,418	1,207
— related parties	53	47
Fair value of derivative instruments	60	74
Accrued expenses and other current liabilities
— third parties	547	497
— related party	250	0
Deferred income tax liabilities	16	28
Liabilities held for sale	11	1
Total current liabilities	3,170	2,352
Long–term debt, net of current portion	4,359	4,434
Deferred income tax liabilities	425	504
Accrued postretirement benefits	621	731
Other long–term liabilities	271	262
Total liabilities	8,846	8,283
Commitments and contingencies
Shareholder’s equity
Common stock, no par value; unlimited number of shares authorized; 1,000 shares issued and outstanding as of March 31, 2014 and March 31, 2013	0	0
Additional paid–in capital	1,404	1,654
Accumulated deficit	(1,073)	(1,177)
Accumulated other comprehensive loss	(91)	(268)	(191)	57
Total equity of our common shareholder	240	209
Noncontrolling interests	28	30
Total equity	268	239	123	635
Total liabilities and equity	$ 9,114	$ 8,522