XML 69 R46.htm IDEA: XBRL DOCUMENT v3.20.2
OTHER EXPENSE (INCOME) OTHER EXPENSE (INCOME) - Impairment reversal (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 $ 23 $ 12 $ (313) $ 15
Non-current assets or disposal groups classified as held for sale [member]        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 11 12 (325) 15
Intangible assets other than goodwill [member]        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 $ 12 $ 0 $ 12 $ 0