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, 2017	$ 7,206.9	$ 274.0	$ (1,719.4)	$ 461.3	$ 8,903.2	$ (778.8)	$ 66.6
Beginning balance (shares) at Dec. 31, 2017		274.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	124.1				120.4		3.7
Other comprehensive income (loss)	152.5					152.1	0.4
Shares issued under incentive stock plans	6.6	$ 1.3		5.3
Shares issued under incentive stock plans (shares)		1.3
Repurchase of ordinary shares	(250.0)	$ (2.8)		(247.2)
Repurchase of ordinary shares (shares)		(2.8)
Share-based compensation	30.0			30.5	(0.5)
Dividends declared to noncontrolling interest	(11.0)						(11.0)
Cash dividends declared	112.0				112.0
Ending balance (shares) at Mar. 31, 2018		272.5
Ending balance at Mar. 31, 2018	7,140.4	$ 272.5	(1,719.4)	249.9	8,904.4	(626.7)	59.7
Beginning balance at Dec. 31, 2017	7,206.9	$ 274.0	(1,719.4)	461.3	8,903.2	(778.8)	66.6
Beginning balance (shares) at Dec. 31, 2017		274.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,096.1
Other comprehensive income (loss)						(141.0)
Other				0.0
Ending balance (shares) at Sep. 30, 2018		270.1
Ending balance at Sep. 30, 2018	7,343.2	$ 270.1	(1,719.4)	52.4	9,624.8	(919.8)	35.1
Beginning balance at Mar. 31, 2018	7,140.4	$ 272.5	(1,719.4)	249.9	8,904.4	(626.7)	59.7
Beginning balance (shares) at Mar. 31, 2018		272.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	452.6				448.1		4.5
Other comprehensive income (loss)	(281.0)					(277.9)	(3.1)
Shares issued under incentive stock plans	7.2	$ 0.2		7.0
Shares issued under incentive stock plans (shares)		0.2
Repurchase of ordinary shares	(250.1)	$ (2.8)		(247.3)	0.0
Repurchase of ordinary shares (shares)		(2.8)
Share-based compensation	19.6			21.8	(2.2)
Dividends declared to noncontrolling interest	(24.5)						(24.5)
Cash dividends declared	240.4				240.4
Other	0.1	$ (0.1)
Stockholders' Equity, Other Shares		(0.1)
Ending balance (shares) at Jun. 30, 2018		269.8
Ending balance at Jun. 30, 2018	6,823.7	$ 269.8	(1,719.4)	31.4	9,109.9	(904.6)	36.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	519.4				515.1		4.3
Other comprehensive income (loss)	(15.4)					(15.2)	(0.2)
Shares issued under incentive stock plans	22.5	$ 0.4		22.1
Shares issued under incentive stock plans (shares)		0.4
Repurchase of ordinary shares	(14.0)	$ (0.2)		(13.8)	0.0
Repurchase of ordinary shares (shares)		(0.2)
Share-based compensation	12.7			12.7	0.0
Dividends declared to noncontrolling interest	(5.6)						(5.6)
Cash dividends declared	0.2				0.2
Other	(0.1)	$ 0.1
Stockholders' Equity, Other Shares		0.1
Ending balance (shares) at Sep. 30, 2018		270.1
Ending balance at Sep. 30, 2018	7,343.2	$ 270.1	(1,719.4)	52.4	9,624.8	(919.8)	35.1
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	24.5
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		4.8
Shares issued under incentive stock plans (shares)		1.5
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	24.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,127.4
Other comprehensive income (loss)						(105.7)
Repurchase of ordinary shares	$ (500.0)
Repurchase of ordinary shares (shares)	0.0	(4.5)
Ending balance (shares) at Sep. 30, 2019		264.1	24.5
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		14.5
Shares issued under incentive stock plans (shares)		0.4
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		14.9
Shares issued under incentive stock plans (shares)		0.3
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			0.0	0.1
Ending balance (shares) at Sep. 30, 2019		264.1	24.5
Ending balance at Sep. 30, 2019	$ 7,279.1	$ 264.1	$ (1,719.4)	$ 0.0	$ 9,762.7	$ (1,069.8)	$ 41.5