Consolidated Statements of Changes in Equity - USD ($) shares in Millions, $ in Millions		Total	Common Stock [Member]	Treasury Stock	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit)	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]
Common Stock, Dividends, Per Share, Declared		$ 0.4900
Beginning Balance at Dec. 31, 2016			$ 8.0	$ (1,904.0)	$ 8,592.0	$ (1,146.0)	$ (2,756.0)	$ 2,906.0
Beginning Balance (Shares) at Dec. 31, 2016			816.1	156.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		$ (777.0)	$ 0.0	$ 0.0	0.0	(1,161.0)	0.0	384.0
Total foreign currency translation adjustment, net of income tax		634.0	0.0	0.0	0.0	0.0	661.0	(27.0)
Total change in derivative fair value, net of income tax		38.0	0.0	0.0	0.0	0.0	23.0	15.0
Total pension adjustments, net of income tax		247.0	0.0	0.0	0.0	0.0	229.0	18.0
OTHER COMPREHENSIVE INCOME (LOSS)		$ 919.0					913.0	6.0
Fair value adjustment (2)	[1]		0.0	0.0	(25.0)	0.0	0.0	0.0
Disposition of business interests (3)	[2]		0.0	0.0	0.0	0.0	0.0	(666.0)
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	426.0
Contributions from noncontrolling interests			0.0	0.0	0.0	0.0	0.0	11.0
Dividends declared on common stock ($0.49/share)			$ 0.0	$ 0.0	(324.0)	0.0	0.0	0.0
Issuance and exercise of stock-based compensation benefit plans (Shares)			0.2	(1.0)
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ 12.0	5.0	0.0	0.0	0.0
Sales to noncontrolling interests			0.0	0.0	13.0	0.0	7.0	83.0
Acquisition of subsidiary shares from noncontrolling interests			0.0	0.0	240.0	0.0	(40.0)	(68.0)
Ending Balance at Dec. 31, 2017			$ 8.0	$ (1,892.0)	8,501.0	(2,276.0)	(1,876.0)	2,380.0
Ending Balance (Shares) at Dec. 31, 2017			816.3	155.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Temporary Equity, Net Income			$ 0.0	$ 0.0	0.0	0.0	0.0	14.0
Cumulative effect of a change in accounting principle (1)	[3]		0.0	0.0	0.0	31.0	0.0	0.0
Common Stock, Dividends, Per Share, Declared		$ 0.13
Net income (loss)		$ 777.0
Common Stock, Dividends, Per Share, Declared		$ 0.5300
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			816.3	155.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		$ 1,565.0	$ 0.0	$ 0.0	0.0	1,203.0	0.0	360.0
Total foreign currency translation adjustment, net of income tax		(182.0)	0.0	0.0	0.0	0.0	(235.0)	53.0
Total change in derivative fair value, net of income tax		26.0	0.0	0.0	0.0	0.0	14.0	10.0
Total pension adjustments, net of income tax		5.0	0.0	0.0	0.0	0.0	7.0	(2.0)
OTHER COMPREHENSIVE INCOME (LOSS)		(151.0)					(214.0)	61.0
Fair value adjustment (2)	[1]		0.0	0.0	(4.0)	0.0	0.0	0.0
Disposition of business interests (3)	[2]		0.0	0.0	0.0	0.0	0.0	(250.0)
Distributions to noncontrolling interests			0.0	0.0	0.0	0.0	0.0	343.0
Contributions from noncontrolling interests			0.0	0.0	0.0	0.0	0.0	9.0
Dividends declared on common stock ($0.49/share)			$ 0.0	$ 0.0	(348.0)	0.0	0.0	0.0
Issuance and exercise of stock-based compensation benefit plans (Shares)			0.9	(1.0)
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ 14.0	8.0	0.0	0.0	0.0
Sales to noncontrolling interests			0.0	0.0	(3.0)	0.0	0.0	98.0
Acquisition of subsidiary shares from noncontrolling interests					0.0
Ending 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
Ending Balance (Shares) at Dec. 31, 2018			817.2	154.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Temporary Equity, Net Income		$ 2.0
Cumulative effect of a change in accounting principle (1)	[3]		$ 0.0	$ 0.0	0.0	68.0	19.0	81.0
Common Stock, Dividends, Per Share, Declared		$ 0.14
Net income (loss)		$ 233.0
Common Stock, Dividends, Per Share, Declared		$ 0.5528
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			817.2	154.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		478.0	$ 0.0	$ 0.0	0.0	303.0	0.0	182.0
Total foreign currency translation adjustment, net of income tax		(10.0)	0.0	0.0	0.0	0.0	0.0	(10.0)
Total change in derivative fair value, net of income tax		(223.0)	0.0	0.0	0.0	0.0	(166.0)	(57.0)
Total pension adjustments, net of income tax		6.0	0.0	0.0	0.0	0.0	12.0	(6.0)
OTHER COMPREHENSIVE INCOME (LOSS)		$ (227.0)					(154.0)	(73.0)
Fair value adjustment (2)	[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	415.0
Contributions from noncontrolling interests			0.0	0.0	0.0	0.0	0.0	7.0
Dividends declared on common stock ($0.49/share)			$ 0.0	$ 0.0	(367.0)	0.0	0.0	0.0
Purchase of treasury stock (shares)		0.0
Issuance and exercise of stock-based compensation benefit plans (Shares)			0.6	(1.0)
Issuance and exercise of stock-based compensation benefit plans, net of income tax			$ 0.0	$ 11.0	0.0	0.0	0.0	0.0
Sales to noncontrolling interests			0.0	0.0	(5.0)	0.0	0.0	136.0
Acquisition of subsidiary shares from noncontrolling interests					0.0
Ending Balance at Dec. 31, 2019		$ 5,229.0	$ 8.0	$ (1,867.0)	7,776.0	(692.0)	(2,229.0)	2,233.0
Ending Balance (Shares) at Dec. 31, 2019			817.8	153.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Temporary Equity, Net Income		$ (7.0)
Cumulative effect of a change in accounting principle (1)	[3]		$ 0.0	$ 0.0	$ 0.0	$ 10.0	$ (4.0)	$ 0.0

[1] Adjustment to the carrying amount of noncontrolling interest and redeemable stock of subsidiaries to fair value.

[2] See Note 25—Held-for-Sale and Dispositions for further information.

[3] See Note 1—General and Summary of Significant Accounting Policies for further information