Cash Flow Hedge Derivative Gains and Losses Recognized in AOCI and the Amounts Reclassified to Earnings (Detail) (Asset And Liability Management, Foreign Exchange Contracts, USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Net Gain/(Loss) Recognized in AOCI	$ (1.3)	$ (0.1)	$ 1.1	$ (9.3)
Net Gain/(Loss) Reclassified from AOCI to Earnings	1.9	(2.8)	2.5	(4.6)
Net Gain/(Loss) Reclassified from AOCI to Earnings
Derivative Instruments, Gain (Loss) [Line Items]
Other Operating Income	1.9	(1.0)	2.7	(1.7)
Other Operating Expense		$ (1.8)	$ (0.2)	$ (2.9)