Selected Quarterly Financial Data (Parenthetical) (Detail) (USD $)	1 Months Ended	3 Months Ended							12 Months Ended			3 Months Ended
	Sep. 30, 2012	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2013 Maximum
Selected Quarterly Financial Data [Line Items]
Restructuring charges (reversals), net		$ 8,000,000	$ 4,000,000	$ (7,000,000)	$ 77,000,000	$ 25,000,000	$ 129,000,000	$ 6,000,000	$ 3,766,000	$ 236,170,000	$ 24,420,000	$ (1,000,000)
Pre-tax gain on sale of investments	4,603,322,000					4,603,322,000				4,603,322,000
Net tax benefit from one-time distribution of earnings from consolidated foreign subsidiaries					117,000,000				36,000,000	117,000,000
Gain on sale of patents		70,000,000							79,950,000
Goodwill impairment charge		$ 63,555,000							$ 63,555,000