Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Ordinary shares	Ordinary shares held in treasury, at cost	Capital in excess of par value	Retained earnings	Accumulated  other comprehensive income (loss)	Noncontrolling Interests
Beginning balance at Dec. 31, 2018	$ 7,064.8	$ 266.4	$ (1,719.4)	$ 0.0	$ 9,439.8	$ (964.1)	$ 42.1
Beginning balance (shares) at Dec. 31, 2018		266.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	203.7				199.9		3.8
Other comprehensive income (loss)	5.9					5.5	0.4
Shares issued under incentive stock plans	6.3	$ 1.5
Shares issued under incentive stock plans (shares)		1.5
Stock Issued During Period, Value, Stock Options Exercised, net of tax remittances				4.8
Repurchase of ordinary shares	(250.0)	$ (2.4)		(34.6)	(213.0)
Repurchase of ordinary shares (shares)		(2.4)
Share-based compensation	29.0			29.7	(0.7)
Dividends declared to noncontrolling interest	(9.3)						(9.3)
Cash dividends declared	127.7				127.7
Other	0.1			0.1
Ending balance (shares) at Mar. 31, 2019		265.5
Ending balance at Mar. 31, 2019	6,922.8	$ 265.5	(1,719.4)	0.0	9,298.3	(958.6)	37.0
Beginning balance at Dec. 31, 2018	7,064.8	$ 266.4	(1,719.4)	0.0	9,439.8	(964.1)	42.1
Beginning balance (shares) at Dec. 31, 2018		266.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,127.4
Other comprehensive income (loss)	(104.6)					(105.7)
Ending balance (shares) at Sep. 30, 2019		264.1
Ending balance at Sep. 30, 2019	7,279.1	$ 264.1	(1,719.4)	0.0	9,762.7	(1,069.8)	41.5
Beginning balance at Mar. 31, 2019	6,922.8	$ 265.5	(1,719.4)	0.0	9,298.3	(958.6)	37.0
Beginning balance (shares) at Mar. 31, 2019		265.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	460.3				456.1		4.2
Other comprehensive income (loss)	20.6					19.4	1.2
Shares issued under incentive stock plans	14.9	$ 0.4
Shares issued under incentive stock plans (shares)		0.4
Stock Issued During Period, Value, Stock Options Exercised, net of tax remittances				14.5
Share-based compensation	10.2			11.5	(1.3)
Cash dividends declared	255.9				255.9
Ending balance (shares) at Jun. 30, 2019		265.9
Ending balance at Jun. 30, 2019	7,172.9	$ 265.9	(1,719.4)	26.0	9,497.2	(939.2)	42.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	463.4				458.8		4.6
Other comprehensive income (loss)	(131.1)					(130.6)	(0.5)
Shares issued under incentive stock plans	15.2	$ 0.3
Shares issued under incentive stock plans (shares)		0.3
Stock Issued During Period, Value, Stock Options Exercised, net of tax remittances				14.9
Repurchase of ordinary shares	(250.1)	$ (2.1)		(54.1)	(193.9)
Repurchase of ordinary shares (shares)		(2.1)
Share-based compensation	13.1			13.2	(0.1)
Dividends declared to noncontrolling interest	(5.0)						(5.0)
Cash dividends declared	0.6				0.6
Other	0.1				0.1
Ending balance (shares) at Sep. 30, 2019		264.1
Ending balance at Sep. 30, 2019	7,279.1	$ 264.1	(1,719.4)	0.0	9,762.7	(1,069.8)	41.5
Beginning balance at Dec. 31, 2019	7,312.4	$ 262.8	$ (1,719.4)	0.0	9,730.8	(1,006.6)	44.8
Beginning balance (shares) at Dec. 31, 2019		262.8	24.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	(25.9)				(29.2)		3.3
Other comprehensive income (loss)	(58.6)					(58.7)	0.1
Shares issued under incentive stock plans		$ 0.9
Shares issued under incentive stock plans (shares)		0.9
Stock Issued During Period, Value, Stock Options Exercised, net of tax remittances	(5.6)			(6.5)
Share-based compensation	27.6			29.0	(1.4)
Dividends declared to noncontrolling interest	(6.1)						(6.1)
Investment by JV Partner	7.0			3.9			3.1
Cash dividends declared	126.7				126.7
Stockholders' Equity Note, Spinoff Transaction	(1,334.3)				(1,445.6)	139.3	(28.0)
Ending balance (shares) at Mar. 31, 2020		263.7
Ending balance at Mar. 31, 2020	5,789.8	$ 263.7	$ (1,719.4)	26.4	8,127.9	(926.0)	17.2
Beginning balance at Dec. 31, 2019	7,312.4	$ 262.8	$ (1,719.4)	0.0	9,730.8	(1,006.6)	44.8
Beginning balance (shares) at Dec. 31, 2019		262.8	24.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	620.8
Other comprehensive income (loss)	108.4
Stockholders' Equity Note, Spinoff Transaction						139.3
Ending balance (shares) at Sep. 30, 2020		264.5	24.5
Ending balance at Sep. 30, 2020	6,381.0	$ 264.5	$ (1,719.4)	93.3	8,489.3	(761.0)	14.3
Beginning balance at Mar. 31, 2020	5,789.8	$ 263.7	(1,719.4)	26.4	8,127.9	(926.0)	17.2
Beginning balance (shares) at Mar. 31, 2020		263.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	242.1				238.8		3.3
Other comprehensive income (loss)	52.0					49.9	2.1
Shares issued under incentive stock plans	3.7	$ 0.1
Shares issued under incentive stock plans (shares)		0.1
Stock Issued During Period, Value, Stock Options Exercised, net of tax remittances				3.6
Share-based compensation	16.0			16.5	(0.5)
Cash dividends declared	126.9				126.9
Stockholders' Equity Note, Spinoff Transaction	(17.2)				(17.2)
Ending balance (shares) at Jun. 30, 2020		263.8
Ending balance at Jun. 30, 2020	5,959.5	$ 263.8	$ (1,719.4)	46.5	8,222.1	(876.1)	22.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	404.6				400.6		4.0
Other comprehensive income (loss)	115.0					115.1	(0.1)
Shares issued under incentive stock plans	35.5	$ 0.7
Shares issued under incentive stock plans (shares)		0.7
Stock Issued During Period, Value, Stock Options Exercised, net of tax remittances				34.8
Share-based compensation	11.6			12.0	(0.4)
Dividends declared to noncontrolling interest	(12.2)						(12.2)
Cash dividends declared	127.1				127.1
Stockholders' Equity Note, Spinoff Transaction	(5.9)				(5.9)
Ending balance (shares) at Sep. 30, 2020		264.5	24.5
Ending balance at Sep. 30, 2020	$ 6,381.0	$ 264.5	$ (1,719.4)	$ 93.3	$ 8,489.3	$ (761.0)	$ 14.3