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]	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]		Cumulative Effect, Period of Adoption, Adjustment [Member] Treasury Stock, Common [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2018			$ 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 (loss)			$ 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 INCOME (LOSS)							(32.0)	(23.0)
Fair Value Adjustment	[1]		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							$ 0.0	[2]
Beginning Balance at Dec. 31, 2018			$ 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 (loss)		$ 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 INCOME (LOSS)		(354.0)
Contributions from noncontrolling interests and redeemable security holders		15.0
Ending Balance (Shares) at Sep. 30, 2019			817,800,000	153,900,000
Ending Balance at Sep. 30, 2019			$ 8.0	$ (1,867.0)	7,948.0	(614.0)	(2,335.0)	2,246.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent	[2]								$ 0.0		$ 0.0	$ 0.0	$ 12.0	$ (4.0)
Beginning Balance at Mar. 31, 2019			$ 8.0	$ (1,867.0)	8,039.0	(839.0)	(2,107.0)	2,415.0							0.0	[2]
Beginning Balance (Shares) at Mar. 31, 2019			817,600,000	153,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)			$ 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 INCOME (LOSS)							(40.0)	(17.0)
Fair Value Adjustment	[1]		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							0.0	[2]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent	[2]								0.0		0.0	0.0	(2.0)	0.0
Net income (loss)		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 INCOME (LOSS)		$ (236.0)					(188.0)	(44.0)
Fair Value Adjustment			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 and redeemable security holders			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			$ 8.0	$ (1,867.0)	7,948.0	(614.0)	(2,335.0)	2,246.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent		$ (692.0)
Stockholders' Equity Attributable to Parent		2,996.0
Beginning Balance at Dec. 31, 2019		$ 5,229.0	$ 8.0	$ (1,867.0)	7,776.0	(692.0)	(2,229.0)	2,233.0
Beginning Balance (Shares) at Dec. 31, 2019			817,800,000	153,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)			$ 0.0	$ 0.0	0.0	144.0	0.0	82.0
Total foreign currency translation adjustment, net of income tax			0.0	0.0	0.0	0.0	(96.0)	(56.0)
Total change in derivative fair value, net of income tax			0.0	0.0	0.0	0.0	(366.0)	(25.0)
OTHER COMPREHENSIVE INCOME (LOSS)							(462.0)	(81.0)
Fair Value Adjustment	[3]		0.0	0.0	(7.0)	0.0	0.0	0.0
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	(33.0)
Dividends declared on common stock			$ 0.0	$ 0.0	(95.0)	0.0	0.0	0.0
Common Stock, Dividends, Per Share, Declared		$ 0.1433
Issuance and exercise of stock-based compensation benefit plans (Shares)			100,000	(800,000)
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ 9.0	11.0	0.0	0.0	0.0
Sales to noncontrolling interests			0.0	0.0	(1.0)	0.0	0.0	1.0
Acquisition of subsidiary shares from noncontrolling interests			$ 0.0	$ 0.0	2.0	0.0	1.0	(8.0)
Ending Balance (Shares) at Mar. 31, 2020			817,900,000	153,100,000
Ending Balance at Mar. 31, 2020			$ 8.0	$ (1,858.0)	7,664.0	(583.0)	(2,692.0)	2,178.0							(16.0)	[4]
Beginning Balance at Dec. 31, 2019		$ 5,229.0	$ 8.0	$ (1,867.0)	7,776.0	(692.0)	(2,229.0)	2,233.0
Beginning Balance (Shares) at Dec. 31, 2019			817,800,000	153,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		(249.0)
Total foreign currency translation adjustment, net of income tax		(27.0)
Total change in derivative fair value, net of income tax		(387.0)
Total pension adjustments, net of income tax		1.0
OTHER COMPREHENSIVE INCOME (LOSS)		(413.0)
Contributions from noncontrolling interests and redeemable security holders		0.0
Ending Balance (Shares) at Sep. 30, 2020			818,100,000	153,000,000.0
Ending Balance at Sep. 30, 2020		4,073.0	$ 8.0	$ (1,858.0)	7,480.0	(998.0)	(2,628.0)	2,069.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent | Accounting Standards Update 2016-02 [Member]		4.0
Stockholders' Equity Attributable to Parent | Accounting Standards Update 2016-13 [Member]		39.0
Stockholders' Equity Attributable to Parent	[4]								0.0	[2]	0.0	0.0	(35.0)	0.0
Beginning Balance at Mar. 31, 2020			$ 8.0	$ (1,858.0)	7,664.0	(583.0)	(2,692.0)	2,178.0							(16.0)	[4]
Beginning Balance (Shares) at Mar. 31, 2020			817,900,000	153,100,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)			$ 0.0	$ 0.0	0.0	(83.0)	0.0	83.0
Total foreign currency translation adjustment, net of income tax			0.0	0.0	0.0	0.0	17.0	(2.0)
Total change in derivative fair value, net of income tax			0.0	0.0	0.0	0.0	(18.0)	(2.0)
OTHER COMPREHENSIVE INCOME (LOSS)							(1.0)	(4.0)
Distributions to noncontrolling interests			$ 0.0	$ 0.0	0.0	0.0	0.0	(89.0)
Issuance and exercise of stock-based compensation benefit plans (Shares)			0	(100,000)
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	(2.0)	0.0	0.0	14.0
Acquisition of subsidiary shares from noncontrolling interests			$ 0.0	$ 0.0	3.0	0.0	0.0	(2.0)
Ending Balance (Shares) at Jun. 30, 2020			817,900,000	153,000,000.0
Ending Balance at Jun. 30, 2020			$ 8.0	$ (1,858.0)	7,670.0	(665.0)	(2,693.0)	2,180.0							$ 0.0	[4]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent	[4]								$ 0.0	[2]	$ 0.0	$ 0.0	$ 1.0	$ 0.0
Net income (loss)		(481.0)	0.0	0.0	0.0	(333.0)	0.0	(153.0)
Total foreign currency translation adjustment, net of income tax		110.0	0.0	0.0	0.0	0.0	114.0	(4.0)
Total change in derivative fair value, net of income tax		50.0	0.0	0.0	0.0	0.0	65.0	(12.0)
Total pension adjustments, net of income tax		1.0
OTHER COMPREHENSIVE INCOME (LOSS)		$ 161.0	0.0	0.0	0.0	0.0	179.0	(15.0)
Fair Value Adjustment			0.0	0.0	10.0	0.0	0.0	0.0
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	(66.0)
Dividends declared on common stock			$ 0.0	$ 0.0	(95.0)	0.0	0.0	0.0
Common Stock, Dividends, Per Share, Declared		$ 0.1433
Issuance and exercise of stock-based compensation benefit plans (Shares)			200,000	0
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ 0.0	2.0	0.0	0.0	0.0
Sales to noncontrolling interests			0.0	0.0	(19.0)	0.0	0.0	47.0
Acquisition of subsidiary shares from noncontrolling interests			0.0	0.0	(88.0)	0.0	114.0	(37.0)
Preferred Stock, Shares Issued			$ 0.0	$ 0.0	0.0	0.0	0.0	113.0
Ending Balance (Shares) at Sep. 30, 2020			818,100,000	153,000,000.0
Ending Balance at Sep. 30, 2020		$ 4,073.0	$ 8.0	$ (1,858.0)	7,480.0	(998.0)	(2,628.0)	2,069.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent			$ 0.0	$ 0.0	$ 0.0	$ 0.0	$ 0.0	$ 1.0
Stockholders' Equity Attributable to Parent		(998.0)
Stockholders' Equity Attributable to Parent		$ 2,004.0

[1] Adjustment to record the redeemable stock of Colon at fair value

[2] See Note 1—Financial Statement Presentation—New Accounting Pronouncements in Item 8.—Financial Statements and Supplementary Data of our 2019 Form 10-K for further information.

[3] Adjustment to record the redeemable stock of Colon at fair value.

[4] Includes $39 million adjustment due to ASC 326 adoption, partially offset by $4 million adjustment due to ASC 842 adoption at sPower. See Note 1—Financial Statement Presentation—New Accounting Pronouncements Adopted in 2020 for further information