Financial Instruments Schedule of Derivatives Designated as Hedges Affecting Condensed Consolidated Income Statement and Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income	$ (2.1)	$ (1.6)	$ (0.5)	$ 4.7
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income	(0.8)	(2.7)	(3.3)	(9.6)
Currency Derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income			(0.5)	(6.9)
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income	0	0	0	10.5
Interest Rate Locks
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income	0	0	0	0
cost of goods sold [Member] | Currency Derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income	(0.4)	(2.7)	(2.0)	(8.5)
Discontinued Operations [Member] | Currency Derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income	0	0.4
Interest Expense [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income	0.2	0.2	0.6	0.2
Interest Expense [Member] | Interest Rate Locks
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income	(0.6)	(0.6)	(1.9)	(2.2)
Cash Flow Hedging [Member] | Currency Derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income	(2.1)	(0.8)
Allegion [Member] | Cash Flow Hedging [Member] | Currency Derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income	$ 0	$ (0.8)