Business and Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended			1 Months Ended
	Dec. 31, 2013 Segment	Dec. 31, 2012	Dec. 31, 2011	Mar. 18, 2013 Stock Split	Dec. 31, 2013 Venezuela Operations	Jan. 24, 2014 Venezuela Operations Subsequent Event
Supplementary Information [Line Items]
Operating business segments	3
Stock split additional shares issuable				One additional share of common stock for every two shares of common stock.
Stock split conversion ratio				1.5
Common stock, par value	$ 0.01	$ 0.01		$ 0.01
Stock-based compensation costs	$ 95.8	$ 67.1	$ 23.8
Interest income	7.5	6.7	7.2
Foreign currency transaction gains/(losses)	(6.4)	1.9	(11.1)
Official exchange rate of foreign currency (per U.S. dollar) for remeasuring company's consolidated financial statements					6.30
Venezuela devaluation-related charges	29.0
Exchange rate of foreign currency (per U.S. dollar)						6.30
Concentrations of credit risk, percentage of sales to single customer	17.00%	20.00%	20.00%
Advertising cost	$ 172	$ 156	$ 143