Subsequent Events (Narrative) (Detail) (USD $)	0 Months Ended					0 Months Ended
	Oct. 01, 2014	Apr. 18, 2014	Aug. 06, 2013	Sep. 30, 2014 Revolving Credit Facility Maturing Two Thousand Sixteen [Member]	Oct. 01, 2014 Revolving Credit Facility Maturing Two Thousand Sixteen [Member] Subsequent Event [Member]	Oct. 01, 2014 Revolving Credit Facility [Member] Subsequent Event [Member]	Oct. 01, 2014 Three And One Over Two Convertible Senior Notes [Member] Convertible Debt [Member] Subsequent Event [Member]	Oct. 01, 2014 Three And One Over Two Convertible Senior Notes [Member] Convertible Debt [Member] Subsequent Event [Member]	Dec. 31, 2014 Licensee And Sub Licensee Agreements [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Conversion of Stock, Shares Converted							4,019,009
Debt Instrument, Convertible, Conversion Price Per $1,000 Principal								61.5385
Debt Instrument, Convertible, Conversion Price								$ 16.25
Line of Credit Facility, Current Borrowing Capacity				$ 1,650,000,000	$ 1,650,000,000
Line of Credit Facility, Increase (Decrease), Net						1,800,000,000
Stock Repurchase Program, Authorized Amount	200,000,000	235,000,000	200,000,000
Business Acquisition Purchase Price Allocation Other Intangibles Net									$ 210,000,000