(Income) or Expense Recognized in Earnings Related to Fair Value Hedges (Detail) (Financial Services, USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Financial Services
Derivative [Line Items]
Interest and other borrowing expenses - interest-rate swaps	$ (0.6)	$ 0.2	$ (0.5)	$ 0.4
Interest and other borrowing expenses - term notes	$ (0.1)	$ (1.3)	$ (1.2)	$ (2.7)