Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement Of Partners Capital [Abstract]
Net earnings available to common stockholders	$ 71.8	$ 2.7
Other comprehensive income (loss), net of taxes:
Recognition of deferred pension items, net of taxes of $0.3 in 2014 and $1.5 in 2013	1.8	5.1
Foreign currency translation adjustments	2.4	(21.9)
Unrealized (losses) gains on derivative instruments, net of taxes of $(0.8) in 2014 and $0.3 in 2013	(1.7)	0.1
Comprehensive income (loss), net of taxes	$ 74.3	$ (14.0)