Condensed Consolidated Statements of Changes in Equity - USD ($) shares in Millions, $ in Millions	Total	Ordinary shares	Treasury shares	Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss
Beginning Balance at Dec. 31, 2014	$ 4,663.8	$ 2.0	$ (1,251.9)	$ 4,250.0	$ 2,044.0	$ (380.3)
Beginning Balance (in shares) at Dec. 31, 2014		202.4	(19.9)
Net income	113.9				113.9
Other Comprehensive Income (Loss), Net of Tax	(174.3)					(174.3)
Dividends declared	(1.5)			(1.5)	0.0
Share repurchase	$ (200.0)		$ 0.0	(200.0)
Share repurchase (in shares)	(3.1)	(3.1)	0.0
Exercise of options, net of shares tendered for payment	$ (12.2)	$ 0.0	$ (16.0)	(3.8)
Exercise of options, net of shares tendered for payment (in shares)		0.0	0.3
Issuance of restricted shares, net of cancellations	0.0	$ 0.0	$ 7.7	(7.7)
Issuance of restricted shares, net of cancellations (in shares)		0.0	0.2
Shares surrendered by employees to pay taxes	(3.5)	$ 0.0	$ (2.6)	(0.9)
Shares surrendered by employees to pay taxes (in shares)		0.0	(0.1)
Share-based compensation	9.7			9.7
Ending Balance (in shares) at Mar. 28, 2015		199.3	(19.5)
Ending Balance at Mar. 28, 2015	4,423.3	$ 2.0	$ (1,230.8)	4,048.8	2,157.9	(554.6)
Beginning Balance at Dec. 31, 2014	$ 4,663.8	$ 2.0	$ (1,251.9)	4,250.0	2,044.0	(380.3)
Beginning Balance (in shares) at Dec. 31, 2014		202.4	(19.9)
Treasury Stock, Shares, Retired	19.1
Treasury Stock, Retired, Cost Method, Amount	$ 1,200.0
Ending Balance (in shares) at Dec. 31, 2015		180.5	0.0
Ending Balance at Dec. 31, 2015	4,008.8	$ 1.8	$ 0.0	2,860.3	1,791.7	(645.0)
Net income	107.4				107.4
Other Comprehensive Income (Loss), Net of Tax	13.3					13.3
Dividends declared	$ (59.8)			0.0	(59.8)
Share repurchase (in shares)	0.0
Exercise of options, net of shares tendered for payment	$ (3.2)		$ 0.0	(3.2)
Exercise of options, net of shares tendered for payment (in shares)		0.1	0.0
Issuance of restricted shares, net of cancellations			$ 0.0	0.0
Issuance of restricted shares, net of cancellations (in shares)		0.2	0.0
Shares surrendered by employees to pay taxes	(4.8)		$ 0.0	(4.8)
Shares surrendered by employees to pay taxes (in shares)		(0.1)	0.0
Share-based compensation	16.1			16.1
Ending Balance (in shares) at Mar. 31, 2016		180.7	0.0
Ending Balance at Mar. 31, 2016	$ 4,084.2	$ 1.8	$ 0.0	$ 2,874.8	$ 1,839.3	$ (631.7)