Condensed Consolidated Statements of Changes in Equity Statement - USD ($) $ in Millions		Total	Common Stock [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2017			$ 8.0	$ (1,892.0)	$ 8,501.0	$ (2,276.0)	$ (1,876.0)	$ 2,380.0
Beginning Balance (Shares) at Dec. 31, 2017			816,300,000	155,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			$ 0.0	$ 0.0	0.0	684.0	0.0	98.0
Total foreign currency translation adjustment, net of income tax			0.0	0.0	0.0	0.0	3.0	6.0
Total change in derivative fair value, net of income tax			0.0	0.0	0.0	0.0	44.0	23.0
Total pension adjustments, net of income tax			0.0	0.0	0.0	0.0	2.0	0.0
OTHER COMPREHENSIVE LOSS							49.0	29.0
Fair Value Adjustment	[1]		0.0	0.0	(6.0)	0.0	0.0	0.0
Disposition of business interests	[2]		0.0	0.0	0.0	0.0	0.0	(249.0)
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	(9.0)
Contributions from noncontrolling interests			0.0	0.0	0.0	0.0	0.0	1.0
Dividends declared on common stock			$ 0.0	$ 0.0	(86.0)	0.0	0.0	0.0
Common Stock, Dividends, Per Share, Declared		$ 0.13
Issuance and exercise of stock-based compensation benefit plans (Shares)			0	(1,000,000)
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ (13.0)	(12.0)	0.0	0.0	0.0
Sales to noncontrolling interests			$ 0.0	$ 0.0	0.0	0.0	0.0	1.0
Ending Balance (Shares) at Mar. 31, 2018			816,300,000	154,900,000
Ending Balance at Mar. 31, 2018			$ 8.0	$ (1,879.0)	8,397.0	(1,525.0)	(1,808.0)	2,332.0
Beginning Balance at Dec. 31, 2017			$ 8.0	$ (1,892.0)	8,501.0	(2,276.0)	(1,876.0)	2,380.0
Beginning Balance (Shares) at Dec. 31, 2017			816,300,000	155,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 1,384.0
Total foreign currency translation adjustment, net of income tax		(160.0)
Total change in derivative fair value, net of income tax		99.0
Total pension adjustments, net of income tax		5.0
OTHER COMPREHENSIVE LOSS		(56.0)
Ending Balance (Shares) at Sep. 30, 2018			817,200,000	154,900,000
Ending Balance at Sep. 30, 2018			$ 8.0	$ (1,878.0)	8,328.0	(1,133.0)	(2,020.0)	2,404.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption	[3]		0.0	0.0	0.0	67.0	19.0	81.0
Beginning Balance at Mar. 31, 2018			$ 8.0	$ (1,879.0)	8,397.0	(1,525.0)	(1,808.0)	2,332.0
Beginning Balance (Shares) at Mar. 31, 2018			816,300,000	154,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			$ 0.0	$ 0.0	0.0	290.0	0.0	128.0
Total foreign currency translation adjustment, net of income tax			0.0	0.0	0.0	0.0	(176.0)	52.0
Total change in derivative fair value, net of income tax			0.0	0.0	0.0	0.0	(6.0)	2.0
Total pension adjustments, net of income tax			0.0	0.0	0.0	0.0	2.0	0.0
OTHER COMPREHENSIVE LOSS							(180.0)	54.0
Fair Value Adjustment	[1]		0.0	0.0	1.0	0.0	0.0	0.0
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	(176.0)
Contributions from noncontrolling interests			$ 0.0	$ 0.0	0.0	0.0	0.0	4.0
Issuance and exercise of stock-based compensation benefit plans (Shares)			100,000	0
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ 0.0	(5.0)	0.0	0.0	0.0
Sales to noncontrolling interests			$ 0.0	$ 0.0	(1.0)	0.0	0.0	6.0
Ending Balance (Shares) at Jun. 30, 2018			816,400,000	154,900,000
Ending Balance at Jun. 30, 2018			$ 8.0	$ (1,879.0)	8,402.0	(1,234.0)	(1,988.0)	2,348.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption	[4]		0.0	0.0	0.0	1.0	0.0	0.0
Net income		191.0	0.0	0.0	0.0	101.0	0.0	86.0
Total foreign currency translation adjustment, net of income tax		(45.0)	0.0	0.0	0.0	0.0	(59.0)	14.0
Total change in derivative fair value, net of income tax		36.0	0.0	0.0	0.0	0.0	26.0	10.0
Total pension adjustments, net of income tax		1.0	0.0	0.0	0.0	0.0	1.0	0.0
OTHER COMPREHENSIVE LOSS		$ (8.0)					(32.0)	24.0
Fair Value Adjustment	[1]		0.0	0.0	1.0	0.0	0.0	0.0
Disposition of business interests	[2]		0.0	0.0	0.0	0.0	0.0	(1.0)
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	(68.0)
Contributions from noncontrolling interests			0.0	0.0	0.0	0.0	0.0	1.0
Dividends declared on common stock			$ 0.0	$ 0.0	(86.0)	0.0	0.0	0.0
Common Stock, Dividends, Per Share, Declared		$ 0.13
Issuance and exercise of stock-based compensation benefit plans (Shares)			800,000	0
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ (1.0)	(11.0)	0.0	0.0	0.0
Sales to noncontrolling interests			$ 0.0	$ 0.0	0.0	0.0	0.0	14.0
Ending Balance (Shares) at Sep. 30, 2018			817,200,000	154,900,000
Ending Balance at Sep. 30, 2018			$ 8.0	$ (1,878.0)	8,328.0	(1,133.0)	(2,020.0)	2,404.0
Beginning Balance at Dec. 31, 2018		$ 5,604.0	$ 8.0	$ (1,878.0)	8,154.0	(1,005.0)	(2,071.0)	2,396.0
Beginning Balance (Shares) at Dec. 31, 2018			817,200,000	154,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			$ 0.0	$ 0.0	0.0	154.0	0.0	81.0
Total foreign currency translation adjustment, net of income tax			0.0	0.0	0.0	0.0	4.0	(5.0)
Total change in derivative fair value, net of income tax			0.0	0.0	0.0	0.0	(37.0)	(18.0)
Total pension adjustments, net of income tax			0.0	0.0	0.0	0.0	1.0	0.0
OTHER COMPREHENSIVE LOSS							(32.0)	(23.0)
Fair Value Adjustment	[5]		0.0	0.0	(6.0)	0.0	0.0	0.0
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	(40.0)
Dividends declared on common stock			$ 0.0	$ 0.0	(91.0)	0.0	0.0	0.0
Common Stock, Dividends, Per Share, Declared		$ 0.1365
Issuance and exercise of stock-based compensation benefit plans (Shares)			400,000	(1,000,000)
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ (11.0)	(17.0)	0.0	0.0	0.0
Sales to noncontrolling interests			$ 0.0	$ 0.0	(1.0)	0.0	0.0	1.0
Ending Balance (Shares) at Mar. 31, 2019			817,600,000	153,900,000
Ending Balance at Mar. 31, 2019			$ 8.0	$ (1,867.0)	8,039.0	(839.0)	(2,107.0)	2,415.0
Beginning Balance at Dec. 31, 2018		$ 5,604.0	$ 8.0	$ (1,878.0)	8,154.0	(1,005.0)	(2,071.0)	2,396.0
Beginning Balance (Shares) at Dec. 31, 2018			817,200,000	154,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		598.0
Total foreign currency translation adjustment, net of income tax		(44.0)
Total change in derivative fair value, net of income tax		(339.0)
Total pension adjustments, net of income tax		29.0
OTHER COMPREHENSIVE LOSS		(354.0)
Ending Balance (Shares) at Sep. 30, 2019			817,800,000	153,900,000
Ending Balance at Sep. 30, 2019		5,386.0	$ 8.0	$ (1,867.0)	7,948.0	(614.0)	(2,335.0)	2,246.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption	[4]		0.0	0.0	0.0	12.0	(4.0)	0.0
Beginning Balance at Mar. 31, 2019			$ 8.0	$ (1,867.0)	8,039.0	(839.0)	(2,107.0)	2,415.0
Beginning Balance (Shares) at Mar. 31, 2019			817,600,000	153,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			$ 0.0	$ 0.0	0.0	17.0	0.0	52.0
Total foreign currency translation adjustment, net of income tax			0.0	0.0	0.0	0.0	27.0	5.0
Total change in derivative fair value, net of income tax			0.0	0.0	0.0	0.0	(95.0)	(22.0)
Total pension adjustments, net of income tax			0.0	0.0	0.0	0.0	28.0	0.0
OTHER COMPREHENSIVE LOSS							(40.0)	(17.0)
Fair Value Adjustment	[5]		0.0	0.0	(11.0)	0.0	0.0	0.0
Distributions to noncontrolling interests			$ 0.0	$ 0.0	0.0	0.0	0.0	(198.0)
Issuance and exercise of stock-based compensation benefit plans (Shares)			100,000	0
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ 0.0	(10.0)	0.0	0.0	0.0
Sales to noncontrolling interests			$ 0.0	$ 0.0	0.0	0.0	0.0	8.0
Ending Balance (Shares) at Jun. 30, 2019			817,700,000	153,900,000
Ending Balance at Jun. 30, 2019			$ 8.0	$ (1,867.0)	8,038.0	(824.0)	(2,147.0)	2,260.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption	[4]		0.0	0.0	0.0	(2.0)	0.0	0.0
Net income		298.0	0.0	0.0	0.0	210.0	0.0	96.0
Total foreign currency translation adjustment, net of income tax		(75.0)	0.0	0.0	0.0	0.0	(54.0)	(21.0)
Total change in derivative fair value, net of income tax		(161.0)	0.0	0.0	0.0	0.0	(134.0)	(23.0)
Total pension adjustments, net of income tax		0.0	0.0	0.0	0.0	0.0	0.0	0.0
OTHER COMPREHENSIVE LOSS		$ (236.0)					(188.0)	(44.0)
Fair Value Adjustment	[5]		0.0	0.0	(2.0)	0.0	0.0	0.0
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	(75.0)
Contributions from noncontrolling interests			0.0	0.0	0.0	0.0	0.0	7.0
Dividends declared on common stock			$ 0.0	$ 0.0	(90.0)	0.0	0.0	0.0
Common Stock, Dividends, Per Share, Declared		$ 0.1365
Issuance and exercise of stock-based compensation benefit plans (Shares)			100,000	0
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ 0.0	(3.0)	0.0	0.0	0.0
Sales to noncontrolling interests			$ 0.0	$ 0.0	(1.0)	0.0	0.0	2.0
Ending Balance (Shares) at Sep. 30, 2019			817,800,000	153,900,000
Ending Balance at Sep. 30, 2019		$ 5,386.0	$ 8.0	$ (1,867.0)	$ 7,948.0	$ (614.0)	$ (2,335.0)	$ 2,246.0

[1] ⁽²⁾   Adjustment to record the redeemable stock of Colon at fair value.

[2] ⁽³⁾  See Note 19—Held-for-Sale and Dispositions for further information.

[3] ⁽¹⁾   See Note 1—Financial Statement Presentation—New Accounting Standards Adopted for further information.

[4] ⁽¹⁾   See Note 1—Financial Statement Presentation—New Accounting Standards Adopted for further information.

[5] ⁽²⁾   Adjustment to record the redeemable stock of Colon at fair value.