Notional Amounts of Outstanding Derivative Positions (Detail) In Millions, unless otherwise specified	Mar. 31, 2014 CAD	Mar. 31, 2014 CNY	Mar. 31, 2014 EUR (€)	Mar. 31, 2014 GBP (£)	Mar. 31, 2014 INR	Mar. 31, 2014 MXN	Mar. 31, 2014 MYR	Dec. 31, 2013 CAD	Dec. 31, 2013 CNY	Dec. 31, 2013 EUR (€)	Dec. 31, 2013 GBP (£)	Dec. 31, 2013 INR	Dec. 31, 2013 MXN	Dec. 31, 2013 MYR	Mar. 31, 2014 Fixed to Floating Interest Rate Swaps USD ($)	Dec. 31, 2013 Fixed to Floating Interest Rate Swaps USD ($)	Mar. 31, 2014 Floating to Fixed Interest Rate Swaps USD ($)	Dec. 31, 2013 Floating to Fixed Interest Rate Swaps USD ($)	Mar. 31, 2014 Basis Interest Rate Swaps USD ($)	Dec. 31, 2013 Basis Interest Rate Swaps USD ($)
Derivative [Line Items]
Derivative, Notional Amount	303	1,141	€ 2,483	£ 1,060	225	1,929	199	218	0	€ 2,637	£ 1,097	0	583	0	$ 6,799	$ 6,799	$ 780	$ 780	$ 2,500	$ 2,500