Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows provided by (used in) operating activities
Net loss	$ (234)	$ (38)	$ (39)
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation, Depletion and Amortization	(115)	(131)	(137)
Non-cash asset impairments and accelerated depreciation	27	129	8
Deferred tax (benefit) expense	(3)	2	7
Gain on dispositions (see Note 12)	0	(240)	0
Gain (Loss) on Disposition of Assets	(1)	7	(4)
Amortization of deferred financing fees	16	15	15
Loss (gain) on extinguishment of debt	3	(48)	(41)
Gain on step acquisition	0	0	(5)
Unrealized foreign currency losses (gains)	3	(52)	12
Unrealized (gains) losses on pension and postretirement benefit plan liabilities	(4)	34	(13)
Other non-cash adjustments	(5)	3	(4)
Net change in assets and liabilities:
Accounts receivable	(50)	(1)	91
Inventories	(10)	(8)	65
Accounts and drafts payable	19	27	(21)
Income taxes payable	9	17	8
Other assets, current and non-current	1	(22)	24
Other liabilities, current and long-term	(39)	24	(27)
Net cash (used in) provided by operating activities	(153)	(20)	213
Cash flows (used in) provided by investing activities
Capital expenditures	(117)	(140)	(175)
Capitalized interest	(1)	(1)	(4)
Payments to Acquire Businesses, Net of Cash Acquired	0		(7)
Proceeds from the dispositions, net	0	281	0
Cash received on buyers note	0	75	0
Proceeds from sale of investments, net	0	0	6
Change in restricted cash	1	(9)	8
Investments in and Advances to Affiliates, Dividends or Interest	0	(1)	0
Proceeds from Sale of Property, Plant, and Equipment	8	5	17
Net cash (used in) provided by investing activities	(109)	210	(155)
Cash flows used in financing activities
Net short-term debt borrowings (repayments)	21	(22)	(3)
Borrowings of long-term debt	1,429	644	523
Repayments of long-term debt	(1,251)	(856)	(485)
Long-term debt and credit facility financing fees	(25)	(1)	(11)
Net cash provided by (used in) financing activities	174	(235)	24
Effect of exchange rates on cash and cash equivalents	6	(4)	(10)
(Decrease) increase in cash and cash equivalents	(82)	(49)	72
Cash and cash equivalents (unrestricted) at beginning of period	179	228	156
Cash and cash equivalents (unrestricted) at end of period	97	179	228
Supplemental disclosures of cash flow information
Interest, net	302	306	312
Income taxes, net of cash refunds	13	24	17
Non-cash assumption of debt on step acquisition	0	0	18
Notes Assumed	$ 0	$ 75	$ 0