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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventories [abstract]  
Disclosure Of Detailed Information About Inventories Explanatory [Table Text Block]
At 31 December
(in USD million)20202019
Crude oil2,0222,137
Petroleum products443572
Natural gas229277
Other390377
Inventories3,0843,363