XML 72 R60.htm IDEA: XBRL DOCUMENT v3.5.0.2
Fair Value Hedges (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Interest Rate Swap        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain / (loss) recognized in income on fair value of hedges $ (11) $ 4 $ (2) $ 8
Long-term Debt        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain / (loss) recognized in income on fair value of hedges $ 11 $ (4) $ 2 $ (8)