Consolidated Statement Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities [Abstract]
Net income	$ 180	$ 328	$ 260
Depreciation	158	164	175
Amortization of intangibles	16	49	87
Amortization of deferred financing charges	5	5	$ 5
Call premium on senior notes	2	15
Write-off of deferred financing costs	1	4	$ 4
Earnings of affiliates, net of dividends received	12	4	(2)
Stock compensation expense	14	16	16
Deferred income taxes	(10)	(199)	(10)
Pension expense (contributions), net	(18)	$ 30	$ (60)
Impairment of long-lived assets	36
Impairment of equity affiliate	$ 39
Loss on disposal group held for sale		$ 78
Interest payment received on payment-in-kind note receivable		40	$ 26
Change in working capital	$ (41)	(39)	104
Change in other noncurrent assets and liabilities	(7)	(16)	(3)
Other, net	19	31	(25)
Net cash provided by operating activities	406	510	577
Investing activities [Abstract]
Purchases of property, plant and equipment	$ (260)	(234)	(209)
Principal payment received on payment-in-kind note receivable		35	33
Purchases of marketable securities	$ (43)	(84)	(84)
Proceeds from sales of marketable securities	17	7	28
Proceeds from maturities of marketable securities	$ 30	21	8
Proceeds from sale of businesses		$ 9	1
Other	$ (2)		1
Net cash used in investing activities	(258)	$ (246)	(222)
Financing activities [Abstract]
Net change in short-term debt	$ (5)	(8)	$ (14)
Proceeds from letters of credit		12
Repayment of letters of credit	$ (4)	(8)
Proceeds from long-term debt	18	448	$ 817
Repayment of long-term debt	(60)	(372)	$ (57)
Call premium on senior notes	$ (2)	(15)
Deferred financing payments		$ (7)	$ (17)
Preferred stock redemption			(474)
Dividends paid to preferred stockholders		$ (8)	(28)
Dividends paid to common stockholders	$ (37)	(32)	(30)
Distributions to noncontrolling interests	(9)	(9)	(11)
Repurchases of common stock	(311)	(260)	(337)
Other	7	5	1
Net cash used in financing activities	(403)	(254)	(150)
Net increase (decrease) in cash and cash equivalents	(255)	10	205
Cash and cash equivalents - beginning of period	1,121	1,256	1,059
Effect of exchange rate changes on cash balances	$ (75)	(118)	$ (8)
Less: cash of disposal group held for sale		(27)
Cash and cash equivalents - end of period	$ 791	$ 1,121	$ 1,256