Quarterly report pursuant to Section 13 or 15(d)

Notional Amounts of Outstanding Derivative Positions (Detail)

v3.10.0.1
Notional Amounts of Outstanding Derivative Positions (Detail)
€ in Millions, £ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions
Sep. 30, 2018
USD ($)
Sep. 30, 2018
GBP (£)
Sep. 30, 2018
SGD ($)
Sep. 30, 2018
CAD ($)
Sep. 30, 2018
MXN ($)
Sep. 30, 2018
EUR (€)
Dec. 31, 2017
USD ($)
Dec. 31, 2017
GBP (£)
Dec. 31, 2017
SGD ($)
Dec. 31, 2017
CAD ($)
Dec. 31, 2017
MXN ($)
Dec. 31, 2017
EUR (€)
Derivative [Line Items]                        
Derivative, Notional Amount   £ 1,713 $ 41 $ 1,433 $ 0 € 4,848   £ 1,736 $ 11 $ 1,259 $ 169 € 4,942
Fixed to Floating Interest Rate Swaps                        
Derivative [Line Items]                        
Derivative, Notional Amount $ 4,674           $ 5,424          
Floating to Fixed Interest Rate Swaps                        
Derivative [Line Items]                        
Derivative, Notional Amount $ 778           $ 778          
Investment market price contracts                        
Derivative [Line Items]                        
Derivative, Notional Amount | €           € 0           € 64