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Trade and other receivables
12 Months Ended
Dec. 31, 2017
Subclassifications of assets, liabilities and equities [abstract]  
Trade and other receivables
 
Note 11 Trade and other receivables

FOR THE YEAR ENDED DECEMBER 31
NOTE
2017

2016

Trade receivables(1)
 
3,138

2,967

Allowance for doubtful accounts
24
(55
)
(60
)
Allowance for revenue adjustments
 
(80
)
(85
)
Current tax receivable
 
31

35

Other accounts receivable
 
101

122

Total trade and other receivables
 
3,135

2,979

(1) The details of securitized trade receivables are set out in Note 19, Debt due within one year.