XML 203 R194.htm IDEA: XBRL DOCUMENT v3.23.1
Employee benefits - Costs recognized in the income statement (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Overfunded Pension Plans [Member]      
IfrsStatementLineItems [Line Items]      
Service cost $ 45 $ 10 $ 7
Interest expense 325 196 222
Interest income (412) (253) (297)
Interest expense on effect of (asset ceiling)/ onerous liability 84 58 74
Total of cost, net 42 11 6
Underfunded Pension Plans [Member]      
IfrsStatementLineItems [Line Items]      
Service cost 40 68 52
Interest expense 39 122 134
Interest income (17) (102) (107)
Interest expense on effect of (asset ceiling)/ onerous liability
Total of cost, net 62 88 79
Other Benefits [Member]      
IfrsStatementLineItems [Line Items]      
Service cost 13 1 18
Interest expense 60 33 64
Interest income
Interest expense on effect of (asset ceiling)/ onerous liability
Total of cost, net $ 73 $ 34 $ 82