Consolidated Statement Of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating activities [Abstract]
Net income	$ 226	$ 164
Depreciation	162	129
Amortization of intangibles	10	7
Amortization of deferred financing charges	4	4
Call premium on debt	15	12
Write-off of deferred financing costs	4	5
Earnings of affiliates, net of dividends received	2	3
Stock compensation expense	17	11
Deferred income taxes	10	1
Pension contributions, net	(4)	(12)
Gain on sale of subsidiary	(3)
Change in working capital	(80)	(142)
Other, net	(2)
Net cash provided by operating activities	361	182
Investing activities [Abstract]
Purchases of property, plant and equipment	(251)	(198)
Acquisition of businesses, net of cash acquired	(184)	(18)
Purchases of marketable securities	(23)	(41)
Proceeds from sales of marketable securities	1	47
Proceeds from maturities of marketable securities	16	33
Proceeds from sale of subsidiary	3
Other		(10)
Net cash used in investing activities	(438)	(187)
Financing activities [Abstract]
Net change in short-term debt	(96)	14
Proceeds from long-term debt	676	441
Repayment of long-term debt	(640)	(378)
Call premium on debt	(15)	(12)
Deferred financing payments	(9)	(10)
Dividends paid to common stockholders	(26)	(26)
Distributions to noncontrolling interests	(7)	(16)
Repurchases of common stock		(81)
Other	4	(4)
Net cash used in financing activities	(113)	(72)
Net decrease in cash and cash equivalents	(190)	(77)
Cash and cash equivalents - beginning of period	707	791
Effect of exchange rate changes on cash balances	41	13
Cash and cash equivalents – end of period	558	727
Non-cash investing activity [Abstract]
Purchases of property, plant and equipment held in accounts payable	$ 113	$ 82