Consolidated Statement Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating activities [Abstract]
Net income	$ 440	$ 116	$ 653
Depreciation	260	220	173
Amortization of intangibles	10	13	9
Amortization of deferred financing charges	4	5	5
Call premium on debt		15	12
Write-off of deferred financing costs		4	5
Earnings of affiliates, net of dividends received	(4)	(3)	(3)
Stock compensation expense	16	23	17
Deferred income taxes	(64)	179	(480)
Pension contributions, net	3	(6)	(16)
Impairment of indefinite-lived intangible asset	20
(Gain) loss on sale of subsidiaries		(3)	80
Gain on disposal group held for sale	(2)
(Gain) loss on disposal group held for sale	(3)	27
Change in working capital	(113)	(8)	(51)
Change in other noncurrent assets and liabilities	(12)	(9)	(1)
Other, net	10	(19)	(19)
Net cash provided by operating activities	568	554	384
Investing activities [Abstract]
Purchases of property, plant and equipment	(325)	(393)	(322)
Acquisition of businesses, net of cash acquired	(153)	(185)	(78)
Proceeds from previous acquisition	9
Purchases of marketable securities	(37)	(35)	(93)
Proceeds from sales of marketable securities	15	1	47
Proceeds from maturities of marketable securities	37	27	47
Proceeds from sale of subsidiaries, net of cash disposed	(6)
Proceeds from sale of subsidiaries, net of cash disposed		3	34
Other, net	(2)	(1)
Net cash used in investing activities	(462)	(583)	(365)
Financing activities [Abstract]
Net change in short-term debt	(21)	(90)	9
Proceeds from long-term debt		676	441
Repayment of long-term debt	(13)	(640)	(382)
Call premium on debt		(15)	(12)
Deferred financing payments	(1)	(9)	(11)
Dividends paid to common stockholders	(58)	(35)	(35)
Distributions to noncontrolling interests	(42)	(12)	(17)
Contributions from noncontrolling interests	25
Payments to acquire redeemable noncontrolling interests	(43)
Repurchases of common stock	(25)		(81)
Other, net	(2)	5
Net cash used in financing activities	(180)	(120)	(88)
Net decrease in cash, cash equivalents and restricted cash	(74)	(149)	(69)
Cash, cash equivalents and restricted cash - beginning of period	610	716	800
Effect of exchange rate changes on cash balances	(16)	43	(15)
Cash, cash equivalents and restricted cash - end of period	$ 520	$ 610	$ 716