Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	$ (49.6)	$ (99.3)
Unrealized gain (loss)	0.9	2.3
Gain arising during period		13.4
Reclassification to net earnings	8.2	8.4
Effect of exchange rate changes and deferred taxes	(32.1)	37.3
Balance at the end of the period	(72.6)	(37.9)
Foreign Currency Translation Adjustment
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	61.4	15.4
Effect of exchange rate changes and deferred taxes	(28.0)	47.4
Balance at the end of the period	33.4	62.8
Unrealized Gain (Loss) on Securities
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	(0.4)	(3.0)
Unrealized gain (loss)	1.3	2.3
Reclassification to net earnings	(0.4)	(0.3)
Effect of exchange rate changes and deferred taxes	(0.6)	(0.5)
Balance at the end of the period	(0.1)	(1.5)
Unrealized Gain (Loss) on Derivatives
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	4.6
Unrealized gain (loss)	(0.4)
Effect of exchange rate changes and deferred taxes	0.1
Balance at the end of the period	4.3
Defined Benefit Plans
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	(115.2)	(111.7)
Gain arising during period		13.4
Reclassification to net earnings	8.6	8.7
Effect of exchange rate changes and deferred taxes	(3.6)	(9.6)
Balance at the end of the period	$ (110.2)	$ (99.2)