Consolidated Statement Of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities [Abstract]
Net income	$ 259	$ 220
Depreciation	117	122
Amortization of intangibles	14	38
Amortization of deferred financing charges	3	$ 4
Call premium on senior notes	2
Dividends received in excess of current earnings of affiliates	12	$ 6
Stock compensation expense	14	11
Deferred income taxes	(97)	(6)
Pension contributions, net	(14)	(8)
Impairment of long-lived assets	$ 36
Interest payment received on payment-in-kind note receivable		40
Change in working capital	$ (92)	(95)
Other, net	12	(5)
Net cash provided by operating activities	266	327
Investing activities [Abstract]
Purchases of property, plant and equipment	$ (192)	(169)
Principal payment received on payment-in-kind note receivable		35
Purchases of marketable securities	$ (29)	(63)
Proceeds from sales of marketable securities	15	2
Proceeds from maturities of marketable securities	21	4
Proceeds from sale of business		9
Other	(3)	5
Net cash used in investing activities	(188)	(177)
Financing activities [Abstract]
Net change in short-term debt	$ 3	(5)
Proceeds from letters of credit		12
Repayment of letters of credit	$ (4)	(8)
Proceeds from long-term debt	18	23
Repayment of long-term debt	(59)	(26)
Call premium on senior notes	$ (2)
Dividends paid to preferred stockholders		(6)
Dividends paid to common stockholders	$ (27)	(24)
Distributions to noncontrolling interests	(8)	(8)
Repurchases of common stock	(245)	(181)
Other	6	4
Net cash used in financing activities	(318)	(219)
Net decrease in cash and cash equivalents	(240)	(69)
Cash and cash equivalents - beginning of period	1,121	1,256
Effect of exchange rate changes on cash balances	(64)	(84)
Cash and cash equivalents – end of period	$ 817	$ 1,103