Consolidated Statements of Changes in Stockholders Equity € in Millions, $ in Millions	USD ($)	EUR (€)	Ordinary Shares Issued USD ($)	Ordinary Shares Held In Treasury And Employee Benefit Trust USD ($)	Capital in Excess of Par Value of Ordinary Shares USD ($)	Retained Earnings USD ($)	Accumulated Other Comprehensive Income (Loss) USD ($)	Noncontrolling Interest USD ($)
Beginning balance at Dec. 31, 2016	$ 5,002.1		$ 114.7	$ (44.5)	$ 2,683.1	$ 3,362.1	$ (1,101.6)	$ (11.7)
Net income	134.2							20.9
Net Income (Loss) Attributable to Parent	113.3					113.3
Other comprehensive income	98.3						97.9	0.4
Stock Issued During Period, Value, Acquisitions	(8,170.7)		(351.9)	(6.6)	(7,825.4)
Issuance of ordinary shares	(58.5)		(2.1)		(47.6)	(8.8)
Dividends ($0.52 per share) (Note 18)	1.2		0.6		0.6
Treasury Stock, Retired, Cost Method, Amount	21.2			44.5	23.3
Net sales of ordinary shares for employee benefit trust	1.8			1.8
Dividends (Note 15)	(60.6)	€ (60.6)				(60.6)
Share-based compensation (Note 19)	44.4				44.4
Other	12.6				0.7			11.9
Ending balance at Dec. 31, 2017	13,367.4		465.1	(4.8)	10,483.3	3,406.0	(1,003.7)	21.5
Adoption of accounting standards (Note 5)	(91.4)		0.0	0.0	0.0		0.0	0.1
Net income	(1,910.8)							10.8
Net Income (Loss) Attributable to Parent	(1,921.6)					(1,921.6)
Other comprehensive income	(360.6)						(356.0)	(4.6)
Issuance of ordinary shares	(442.8)		(14.8)		(333.5)	(94.5)
Dividends ($0.52 per share) (Note 18)	0.2		0.2
Net sales of ordinary shares for employee benefit trust	2.4			2.4
Dividends (Note 15)	(238.1)	€ (238.1)				(238.1)
Share-based compensation (Note 19)	49.1				49.1
Other	13.5				(1.9)	11.9		3.5
Ending balance at Dec. 31, 2018	10,388.9		450.5	(2.4)	10,197.0	1,072.2	(1,359.7)	31.3
Adoption of accounting standards (Note 5)	1.8
Net income	(2,412.1)							3.1
Net Income (Loss) Attributable to Parent						(2,415.2)
Other comprehensive income	(48.5)						(47.8)	(0.7)
Issuance of ordinary shares	(92.7)		(4.0)		(88.7)
Dividends ($0.52 per share) (Note 18)	0.6		0.6
Net sales of ordinary shares for employee benefit trust	2.4			2.4
Dividends (Note 15)	(232.8)					(232.8)
Share-based compensation (Note 19)	74.5				74.5
Other	6.0					10.9		(4.9)
Ending balance at Dec. 31, 2019	$ 7,688.1		$ 447.1	$ 0.0	$ 10,182.8	$ (1,563.1)	$ (1,407.5)	$ 28.8