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Provision for decommissioning costs (Details 1) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Provision For Decommissioning Costs    
Opening balance $ 18,600 $ 15,619
Adjustment to provision 19 37
Transfers related to liabilities held for sale [1]   (1,075)
Use of provisions (458) (404)
Interest accrued 414 246
Others (8) (4)
Translation adjustment 1,536 1,055
Opening balance $ 20,103 $ 15,474
[1] In the six-month period ended June 30, 2022, it refers to the Golfinho and Camarupim Group (US$ 103), in Espírito Santo,  the Albacora Leste Field (US$ 374), in Rio de Janeiro, the Norte Capixaba Group (US$ 32), in Espírito Santo state, and the Potiguar Group (US$ 566), in Rio Grande do Norte state.