XML 195 R188.htm IDEA: XBRL DOCUMENT v3.8.0.1
Financial instruments and risk management - Summary of financial liabilities by categories (Detail) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Disclosure of financial liabilities [Line Items]    
Trade and other payables $ (5,922) $ (5,209)
Short term borrowings and bank overdrafts (552) (717)
Medium and long-term borrowings (14,624) (16,913)
Derivatives related to net debt (276) (516)
Other derivatives and embedded derivatives: not designated as hedges (255) (7)
Other financial liabilities (345) (239)
Total financial liabilities (21,974) (23,601)
Held at fair value [member]    
Disclosure of financial liabilities [Line Items]    
Trade and other payables (15) (5)
Derivatives related to net debt (276) (516)
Other derivatives and embedded derivatives: not designated as hedges (255) (7)
Total financial liabilities (546) (528)
Other financial liability [Member]    
Disclosure of financial liabilities [Line Items]    
Trade and other payables (5,907) (5,204)
Short term borrowings and bank overdrafts (552) (717)
Medium and long-term borrowings (14,624) (16,913)
Other financial liabilities (345) (239)
Total financial liabilities $ (21,428) $ (23,073)