XML 88 R80.htm IDEA: XBRL DOCUMENT v3.23.3
Income taxes - Settlement program (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Notes and other explanatory information [abstract]    
Current liabilities $ 416 $ 371
Non-current liabilities 1,886 1,869
REFIS liabilities $ 2,302 $ 2,240
SELIC rate (in percentage) 13.75% 13.75%