Annual report pursuant to Section 13 and 15(d)

Notional Amounts of Outstanding Derivative Positions (Detail)

v2.4.0.6
Notional Amounts of Outstanding Derivative Positions (Detail)
In Millions, unless otherwise specified
Dec. 31, 2011
Euro
EUR (€)
Dec. 31, 2010
Euro
EUR (€)
Dec. 31, 2011
British Pound Sterling
GBP (£)
Dec. 31, 2010
British Pound Sterling
GBP (£)
Dec. 31, 2011
Canadian Dollar
CAD
Dec. 31, 2010
Canadian Dollar
CAD
Dec. 31, 2011
Fixed to Floating Interest Rate Swaps
USD ($)
Dec. 31, 2010
Fixed to Floating Interest Rate Swaps
USD ($)
Dec. 31, 2011
Floating to Fixed Interest Rate Swaps
USD ($)
Dec. 31, 2010
Floating to Fixed Interest Rate Swaps
USD ($)
Derivative [Line Items]                    
Currency Hedges € 1,685 € 1,732 £ 870 £ 871 318 289        
Interest Rate Hedges             $ 6,424 $ 6,000 $ 791 $ 53