Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Ordinary Shares	Ordinary Shares Held in Treasury and Employee Benefit Trust	Capital in Excess of Par Value of Ordinary Shares	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest
Beginning balance at Dec. 31, 2018	$ 10,388.9	$ 450.5	$ (2.4)	$ 10,197.0	$ 1,072.2	$ (1,359.7)	$ 31.3
Net Income (Loss) Attributable to Parent	117.9				117.9
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	133.5						15.6
Other comprehensive income	12.7					11.4	1.3
Cancellation of ordinary shares	(90.1)	(4.0)		(86.1)
Net sales of ordinary shares for employee benefit trust	2.4		2.4
Dividends	(116.6)				(116.6)
Share-based compensation (Note 16)	41.5			41.5
Other	6.3				8.7		2.4
Ending balance at Jun. 30, 2019	$ 10,380.4	446.5	0.0	10,152.4	1,084.0	(1,348.3)	45.8
Common Stock, Dividends, Per Share, Declared	$ 0.26
Beginning balance at Mar. 31, 2019	$ 10,373.6	448.3		10,169.5	1,047.9	(1,323.0)	30.9
Net Income (Loss) Attributable to Parent	97.0				97.0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	113.7						16.7
Other comprehensive income	(24.7)					(25.3)	0.6
Cancellation of ordinary shares	(40.0)	(1.8)		(38.2)
Dividends	(58.1)				(58.1)
Share-based compensation (Note 16)	21.1			21.1
Other	(5.2)				(2.8)		2.4
Ending balance at Jun. 30, 2019	$ 10,380.4	446.5	$ 0.0	10,152.4	1,084.0	(1,348.3)	45.8
Common Stock, Dividends, Per Share, Declared	$ 0.13
Stockholders' Equity Attributable to Parent	$ 7,659.3
Beginning balance at Dec. 31, 2019	7,688.1	447.1		10,182.8	(1,563.1)	(1,407.5)	28.8
Net Income (Loss) Attributable to Parent	(3,244.4)				(3,244.4)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(3,230.4)						14.0
Other comprehensive income	(246.2)					(238.3)	(7.9)
Issuance of ordinary shares	(5.4)	(2.2)		(7.6)
Dividends	(59.2)				(59.2)
Share-based compensation (Note 16)	38.4			38.4
Other	(1.9)				(1.5)		(0.4)
Ending balance at Jun. 30, 2020	$ 4,175.6	449.3		10,213.6	(4,876.0)	(1,645.8)	34.5
Common Stock, Dividends, Per Share, Declared	$ 0.13
Beginning balance at Mar. 31, 2020	$ 4,084.8	448.3		10,196.8	(4,887.0)	(1,701.7)	28.4
Net Income (Loss) Attributable to Parent	11.7				11.7
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	15.3						3.6
Other comprehensive income	59.1					55.9	3.2
Net sales of ordinary shares for employee benefit trust	1.0	1.0
Share-based compensation (Note 16)	16.8			16.8
Other	(1.4)				(0.7)		0.7
Ending balance at Jun. 30, 2020	4,175.6	$ 449.3		$ 10,213.6	$ (4,876.0)	$ (1,645.8)	$ 34.5
Stockholders' Equity Attributable to Parent	$ 4,141.1