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Provisions (Information) (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2021
USD ($)
Disclosure of other provisions [line items]  
Balance at the beginning of the year $ 321
Provisions recorded during the year 41
Provisions recorded in respect of business combinations 3
Provisions reversed during the period (4)
Payments during the period (16)
Translation differences (8)
Balance at the end of the year 337
Site restoration and equipmen dismantling [Member]  
Disclosure of other provisions [line items]  
Balance at the beginning of the year 279
Provisions recorded during the year 24
Provisions recorded in respect of business combinations 0
Provisions reversed during the period 0
Payments during the period (13)
Translation differences (7)
Balance at the end of the year 283
Legal claims [Member]  
Disclosure of other provisions [line items]  
Balance at the beginning of the year 10
Provisions recorded during the year 5
Provisions recorded in respect of business combinations 3
Provisions reversed during the period (3)
Payments during the period (1)
Translation differences (1)
Balance at the end of the year 13
Other [Member]  
Disclosure of other provisions [line items]  
Balance at the beginning of the year 32
Provisions recorded during the year 12
Provisions recorded in respect of business combinations 0
Provisions reversed during the period (1)
Payments during the period (2)
Translation differences 0
Balance at the end of the year $ 41