XML 247 R200.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Employee benefits (Details 8) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Overfunded Pension Plans [Member] | Country of domicile [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of expected rates of inflation 3.08% 3.50%
Overfunded Pension Plans [Member] | Country of domicile [member] | Actuarial assumption of discount rates [member]    
IfrsStatementLineItems [Line Items]    
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption $ 2,940  
Actuarial Assumption Of Discount Rate, Increase In Assumption 9.60%  
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption $ 3,399  
Actuarial Assumption Of Discount Rate, Decrease In Assumption 7.60%  
Overfunded Pension Plans [Member] | Country of domicile [member] | Bottom of range [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of discount rates 8.57% 9.77%
Actuarial assumption of nominal average rate of expense or income 8.57% 9.77%
Actuarial assumption of expected rates of salary increases 3.08% 3.50%
Actuarial assumption of expected rates of pension increases 3.08% 3.50%
Overfunded Pension Plans [Member] | Country of domicile [member] | Top of range [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of discount rates 8.63% 9.88%
Actuarial assumption of nominal average rate of expense or income 8.63% 9.88%
Actuarial assumption of expected rates of salary increases 4.94% 5.36%
Actuarial assumption of expected rates of pension increases 3.60% 4.02%
Overfunded Pension Plans [Member] | Foreign countries [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of discount rates 4.63% 5.10%
Actuarial assumption of nominal average rate of expense or income 5.10% 2.84%
Actuarial assumption of expected rates of salary increases 3.31% 3.23%
Actuarial assumption of expected rates of pension increases 3.00% 3.00%
Actuarial assumption of expected rates of inflation 2.08% 2.06%
Overfunded Pension Plans [Member] | Foreign countries [member] | Actuarial assumption of discount rates [member]    
IfrsStatementLineItems [Line Items]    
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption $ 1,237  
Actuarial Assumption Of Discount Rate, Increase In Assumption 5.63%  
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption $ 1,506  
Actuarial Assumption Of Discount Rate, Decrease In Assumption 3.63%  
Underfunded Pension Plans [Member] | Country of domicile [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of discount rates 10.15% 10.66%
Actuarial assumption of nominal average rate of expense or income 10.15% 10.66%
Actuarial assumption of expected rates of salary increases 4.50% 6.86%
Actuarial assumption of expected rates of pension increases 4.50% 6.86%
Actuarial assumption of expected rates of inflation 4.50% 4.25%
Underfunded Pension Plans [Member] | Country of domicile [member] | Actuarial assumption of discount rates [member]    
IfrsStatementLineItems [Line Items]    
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption $ 262  
Actuarial Assumption Of Discount Rate, Increase In Assumption 11.15%  
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption $ 283  
Actuarial Assumption Of Discount Rate, Decrease In Assumption 9.15%  
Underfunded Pension Plans [Member] | Foreign countries [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of discount rates 4.63% 5.10%
Actuarial assumption of nominal average rate of expense or income 5.10% 2.84%
Actuarial assumption of expected rates of salary increases 3.31% 3.23%
Actuarial assumption of expected rates of pension increases 3.00% 3.00%
Actuarial assumption of expected rates of inflation 2.08% 2.06%
Underfunded Pension Plans [Member] | Foreign countries [member] | Actuarial assumption of discount rates [member]    
IfrsStatementLineItems [Line Items]    
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption $ 745  
Actuarial Assumption Of Discount Rate, Increase In Assumption 5.63%  
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption $ 957  
Actuarial Assumption Of Discount Rate, Decrease In Assumption 3.63%  
Other Benefits [Member] | Country of domicile [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of medical cost trend rates 6.17% 6.35%
Actuarial assumption of ultimate medical cost trend rates 6.17% 6.35%
Actuarial assumption of expected rates of inflation 3.08%  
Other Benefits [Member] | Country of domicile [member] | Actuarial assumption of discount rates [member]    
IfrsStatementLineItems [Line Items]    
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption $ 501  
Actuarial Assumption Of Discount Rate, Increase In Assumption 9.67%  
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption $ 387  
Actuarial Assumption Of Discount Rate, Decrease In Assumption 7.67%  
Other Benefits [Member] | Country of domicile [member] | Bottom of range [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of discount rates 8.59% 9.81%
Other Benefits [Member] | Country of domicile [member] | Top of range [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of discount rates 8.74% 9.90%
Other Benefits [Member] | Foreign countries [member]    
IfrsStatementLineItems [Line Items]    
Actuarial assumption of discount rates 4.64% 5.14%
Actuarial assumption of nominal average rate of expense or income 5.14% 3.03%
Actuarial assumption of medical cost trend rates 4.85% 5.11%
Actuarial assumption of ultimate medical cost trend rates 4.49% 4.57%
Other Benefits [Member] | Foreign countries [member] | Actuarial assumption of discount rates [member]    
IfrsStatementLineItems [Line Items]    
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption $ 677  
Actuarial Assumption Of Discount Rate, Increase In Assumption 5.65%  
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption $ 880  
Actuarial Assumption Of Discount Rate, Decrease In Assumption 3.64%