Consolidated Statement Of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities [Abstract]
Net income	$ 111	$ 80
Depreciation	64	49
Amortization of intangibles	3	3
Amortization of deferred financing charges	1	1
Earnings of affiliates, net of dividends received	(5)	(5)
Stock compensation expense	4	4
Deferred income taxes	12	10
Pension contributions, net		(2)
Change in working capital	(216)	(133)
Other, net	(2)	4
Net cash provided by (used in) operating activities	(28)	11
Investing activities [Abstract]
Purchases of property, plant and equipment	(65)	(96)
Acquisition of businesses, net of cash acquired		(182)
Purchases of marketable securities	(17)	(11)
Proceeds from sales of marketable securities	4
Proceeds from maturities of marketable securities	11	13
Other		(2)
Net cash used in investing activities	(67)	(278)
Financing activities [Abstract]
Net change in short-term debt	(7)	(1)
Repayment of long-term debt	(1)	(17)
Dividends paid to common stockholders	(15)	(9)
Distributions to noncontrolling interests	(1)	(1)
Other	(4)	2
Net cash used in financing activities	(28)	(26)
Net decrease in cash, cash equivalents and restricted cash	(123)	(293)
Cash, cash equivalents and restricted cash - beginning of period	610	716
Effect of exchange rate changes on cash balances	14	13
Less: Cash contributed to disposal group	(10)
Cash, cash equivalents and restricted cash - end of period	491	436
Non-cash investing activity [Abstract]
Purchases of property, plant and equipment held in accounts payable	$ 81	$ 106