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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 545.4	$ 443.7	$ 419.2
Other comprehensive income (loss):
Foreign currency translation	201.4	(79.9)	(182.8)
Translation adjustments on net investment hedge, net of income taxes of $(34.3), $8.4 and $19.2, respectively	(64.7)	14.8	34.5
Translation adjustments on long-term intercompany loans	4.9	(58.2)	(2.1)
Unrealized (loss) gain on investments, net of income taxes of $(0.8), $0.4 and $0.1, respectively	(3.3)	1.6	0.3
Defined benefit pension plans and retiree health care plan, net of income taxes of $(0.1), $(5.8) and $7.8, respectively	(0.4)	(18.4)	19.3
Total other comprehensive income (loss)	137.9	(140.1)	(130.8)
Comprehensive income	$ 683.3	$ 303.6	$ 288.4

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Net of tax and reclassification adjustments of the change in the balance sheet adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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Amount of increase (decrease) in the cumulative translation adjustment from gain (loss), after tax, on foreign currency derivatives, that are designated as, and are effective as, economic hedges of a net investment in a foreign entity.

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