Equity (Components of Shareholders' Equity) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 6,045.4	$ 7,131.3
Net earnings	$ 82.9	$ 310.6	138.3	394.0
Currency translation			(244.8)	(43.0)
Change in value of marketable securities and derivatives qualifying as cash flow hedges, net of tax			1.4	3.6
Pension and OPEB adjustments, net of tax			23.6	9.8
Total comprehensive income (loss)	143.0	315.4	(81.5)	364.4
Share-based compensation			36.9	38.7
Dividends declared to noncontrolling interests			(5.2)	(14.8)
Dividends declared to ordinary shareholders			(153.4)	(135.3)
Shares issued under incentive plans, net			45.3	68.6
Repurchase of ordinary shares				(1,012.8)
Ending balance	5,887.5	6,440.1	5,887.5	6,440.1
Shareholders' Equity [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			5,987.4	7,068.9
Net earnings			130.2	384.9
Currency translation			(243.8)	(44.1)
Change in value of marketable securities and derivatives qualifying as cash flow hedges, net of tax			1.4	3.6
Pension and OPEB adjustments, net of tax			23.6	9.8
Total comprehensive income (loss)			(88.6)	354.2
Share-based compensation			36.9	38.7
Dividends declared to noncontrolling interests			0.0	0.0
Dividends declared to ordinary shareholders			(153.4)	(135.3)
Shares issued under incentive plans, net			45.3	68.6
Repurchase of ordinary shares				(1,012.8)
Ending balance	5,827.6	6,382.3	5,827.6	6,382.3
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			58.0	62.4
Net earnings			8.1	9.1
Currency translation			(1.0)	1.1
Change in value of marketable securities and derivatives qualifying as cash flow hedges, net of tax			0.0	0.0
Pension and OPEB adjustments, net of tax			0.0	0.0
Total comprehensive income (loss)			7.1	10.2
Share-based compensation			0.0	0.0
Dividends declared to noncontrolling interests			(5.2)	(14.8)
Dividends declared to ordinary shareholders			0.0	0.0
Shares issued under incentive plans, net			0.0	0.0
Repurchase of ordinary shares				0.0
Ending balance	$ 59.9	$ 57.8	$ 59.9	$ 57.8