Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - 9 months ended Sep. 30, 2018 - 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, 2017	$ 13,409.4	$ 465.1	$ (4.8)	$ 10,483.3	$ 3,448.0	$ (1,003.7)	$ 21.5
Increase (Decrease) in Stockholders' Equity
Adoption of accounting standards	(91.4)				(91.5)		0.1
Net income (loss)	335.7				337.7		(2.0)
Other comprehensive income (loss)	(309.4)					(310.2)	0.8
Cancellation of treasury shares	(384.2)	(12.3)		(278.0)	(93.9)
Issuance of ordinary shares	0.2	0.1		0.1
Net sales of ordinary shares for employee benefit trust	2.4		2.4
Dividends	(179.2)				(179.2)
Share-based compensation	41.7			41.7
Other	(0.9)						(0.9)
Ending balance at Sep. 30, 2018	$ 12,824.3	$ 452.9	$ (2.4)	$ 10,247.1	$ 3,421.1	$ (1,313.9)	$ 19.5