XML 80 R61.htm IDEA: XBRL DOCUMENT v3.8.0.1
Short-Term Borrowings and Related Weighted-Average Interest Rates (Detail) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Short-term Debt [Line Items]    
Amount outstanding $ 3,517 $ 2,531
Commercial Paper    
Short-term Debt [Line Items]    
Amount outstanding $ 3,410 $ 2,371
Weighted-average rate 1.70% 1.00%
Bank Loans    
Short-term Debt [Line Items]    
Amount outstanding $ 107 $ 160
Weighted-average rate 11.50% 10.60%