Summary of Short-Term Borrowings and Long-Term Debt (Parenthetical) (Detail)	0 Months Ended	12 Months Ended
	Sep. 26, 2012	Dec. 31, 2013	Dec. 31, 2012
2.875% Senior notes due October 1, 2022
Debt Instrument [Line Items]
Interest rate of debt	2.875%	2.875%	2.875%
Maturity date of debt	Oct. 01, 2022	Oct. 01, 2022	Oct. 01, 2022
3.35% Senior Notes Due December 15, 2015
Debt Instrument [Line Items]
Interest rate of debt		3.35%	3.35%
Maturity date of debt		Dec. 15, 2015	Dec. 15, 2015