Derivative Financial Instruments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of interest-rate contracts	$ 4,091.2	$ 4,091.2
Notional maturities for interest-rate contracts 2014	564.2	564.2
Notional maturities for interest-rate contracts 2015	1,413.0	1,413.0
Notional maturities for interest-rate contracts 2016	1,177.6	1,177.6
Notional maturities for interest-rate contracts 2017	533.6	533.6
Notional maturities for interest-rate contracts 2018	315.0	315.0
Notional maturities for interest-rate contracts thereafter	87.8	87.8
Maximum length of future cash flow hedges		6 years 8 months 12 days
Recognized gain (loss) on the ineffective portion	(0.3)	(0.3)	0.1
Accumulated net loss on derivative contracts included in accumulated other comprehensive loss expected to be reclassified to interest expense or cost of sales in the following 12 months		24.7
Foreign-exchange contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of interest-rate contracts	$ 238.0	$ 238.0
Foreign-exchange contracts maturity period		Within one year