Postretirement Benefit Plans (Details 6) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014
Changes in plan assets and benefit obligations recognized in AOCL:
AOCI at beginning of year			$ 1,008.1		$ 629.9
Net actuarial (gain) loss			33.6
Recognized net actuarial loss			(48.7)
Recognized prior service credit			(2.7)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	0	(1.5)	(0.7)	(6.7)
Foreign currency impact			(3.0)
Spinoff Change in Plan Assets AOCI			(356.7)
Postretirement Benefit Plans [Member]
Changes in plan assets and benefit obligations recognized in AOCL:
AOCI at beginning of year			13.3		7.5
Net actuarial (gain) loss			2.7
Recognized prior service credit			(0.8)
Foreign currency impact			0.1
Spinoff Change in Plan Assets AOCI			$ (7.8)