Condensed Consolidated Statements of Comprehensive Earnings (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net earnings	$ 37.0	$ 182.3	$ 119.4	$ 273.6
Other comprehensive earnings (loss)
Foreign currency translation adjustments	6.1	(16.0)	3.1	(9.6)
Unrealized net (loss) gain) on cash flow derivative instruments, less related income tax benefit (provision) of $0.1 and $(0.2) in 2012, $2.9 and $6.5 in 2011	(0.1)	(4.4)	0.3	(10.2)
Adjustment to additional minimum pension liability loss related income tax benefit of $1.5 and $1.5 in 2012	(3.4)		(3.4)
Unrealized losses on investments less related tax benefit of $0.7 in 2012 and $2.3 and $2.3 in 2011		(3.7)	(1.2)	(3.7)
Comprehensive Earnings	$ 39.6	$ 158.2	$ 118.2	$ 250.1