Business Segment Information (Summary of Operations by Reportable Segments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Dec. 31, 2013
Net revenues	$ 2,722.9		$ 2,639.0		$ 12,350.5
Segment operating income	210.3		172.3
Operating income	155.0		120.0		1,105.0
Climate [Member]
Net revenues	2,040.8		1,958.7
Segment operating income	131.0	[1]	71.5	[1]
Industrial [Member]
Net revenues	682.1		680.3
Segment operating income	79.3		100.8
Unallocated Amount to Segment [Member]
Unallocated corporate expense	$ (55.3)		$ (52.3)

[1] Three months endedIn millions2014 2013Net revenues Climate$2,040.8 $1,958.7Industrial682.1 680.3Total$2,722.9 $2,639.0Segment operating income Climate$131.0 $71.5Industrial79.3 100.8Total$210.3 $172.3Reconciliation to Operating income Unallocated corporate expense(55.3) (52.3)Operating income$155.0 $120.0