Annual report pursuant to Section 13 and 15(d)

Note 18 - Employee Benefit Plans - Change in Benefit Obligation and Plan Assets (Details)

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Note 18 - Employee Benefit Plans - Change in Benefit Obligation and Plan Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Pension Plan [Member]      
Balance at beginning of period $ 3,100    
Balance at end of period 3,200 $ 3,100  
Funded status      
Defined Benefit Plan, Plan Assets, Amount, Ending Balance 3,200 3,100  
UNITED STATES | Pension Plan [Member]      
Benefit obligation at beginning of year 1,091 1,024  
Service cost 20 21 $ 20
Interest cost(a) [1] 31 37 41
Participant contributions 0 0  
Plan amendments 0 0  
Foreign currency exchange rate changes 0 0  
Settlements/curtailments/divestitures 0 (2)  
Actuarial (gain) loss (37) 87  
Benefits paid (57) (76)  
Benefit obligation at end of year 1,048 1,091 1,024
Balance at beginning of period 866 790  
Actual return on plan assets 103 99  
Foreign currency exchange rate changes 0 0  
Settlement/transfers/divestitures 0 (1)  
Company contributions 13 54  
Benefits paid (57) (76)  
Balance at end of period 925 866 790
Funded status      
Defined Benefit Plan, Plan Assets, Amount, Ending Balance 925 866 790
Benefit obligation 1,048 1,091 1,024
Accrued benefit cost (123) (225)  
Amounts recognized in balance sheet:      
Noncurrent asset 0 0  
Current liability (6) (5)  
Noncurrent liability (117) (220)  
Total (123) (225)  
UNITED STATES | Other Postretirement Benefits Plan [Member]      
Benefit obligation at beginning of year 65 60  
Service cost 2 1 1
Interest cost(a) [1] 2 2 3
Participant contributions 2 2  
Plan amendments 0 0  
Foreign currency exchange rate changes 0 0  
Settlements/curtailments/divestitures 0 0  
Actuarial (gain) loss (2) 9  
Benefits paid (8) (9)  
Benefit obligation at end of year 61 65 60
Balance at beginning of period 0 0  
Actual return on plan assets 0 0  
Foreign currency exchange rate changes 0 0  
Settlement/transfers/divestitures 0 0  
Company contributions 6 7  
Benefits paid (8) (9)  
Balance at end of period 0 0 0
Funded status      
Defined Benefit Plan, Plan Assets, Amount, Ending Balance 0 0 0
Benefit obligation 61 65 60
Accrued benefit cost (61) (65)  
Amounts recognized in balance sheet:      
Noncurrent asset 0 0  
Current liability (6) (6)  
Noncurrent liability (55) (59)  
Total (61) (65)  
Foreign Plan [Member] | Pension Plan [Member]      
Benefit obligation at beginning of year 2,671 2,377  
Service cost 34 31 30
Interest cost(a) [1] 18 25 37
Participant contributions 6 6  
Plan amendments 1 0  
Foreign currency exchange rate changes (119) 200  
Settlements/curtailments/divestitures (1) (10)  
Actuarial (gain) loss (109) 116  
Benefits paid (82) (74)  
Benefit obligation at end of year 2,419 2,671 2,377
Balance at beginning of period 2,225 1,960  
Actual return on plan assets 144 143  
Foreign currency exchange rate changes (98) 161  
Settlement/transfers/divestitures (1) (11)  
Company contributions 40 40  
Benefits paid (82) (74)  
Balance at end of period 2,234 2,225 1,960
Funded status      
Defined Benefit Plan, Plan Assets, Amount, Ending Balance 2,234 2,225 1,960
Benefit obligation 2,419 2,671 2,377
Accrued benefit cost (185) (446)  
Amounts recognized in balance sheet:      
Noncurrent asset 144 20  
Current liability (6) (6)  
Noncurrent liability (323) (460)  
Total (185) (446)  
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]      
Benefit obligation at beginning of year 0 0  
Service cost 0 0 0
Interest cost(a) [1] 0 0 0
Participant contributions 0 0  
Plan amendments 0 0  
Foreign currency exchange rate changes 0 0  
Settlements/curtailments/divestitures 0 0  
Actuarial (gain) loss 0 0  
Benefits paid 0 0  
Benefit obligation at end of year 0 0 0
Balance at beginning of period 0 0  
Actual return on plan assets 0 0  
Foreign currency exchange rate changes 0 0  
Settlement/transfers/divestitures 0 0  
Company contributions 0 0  
Benefits paid 0 0  
Balance at end of period 0 0 0
Funded status      
Defined Benefit Plan, Plan Assets, Amount, Ending Balance 0 0 0
Benefit obligation 0 0 $ 0
Accrued benefit cost 0 0  
Amounts recognized in balance sheet:      
Noncurrent asset 0 0  
Current liability 0 0  
Noncurrent liability 0 0  
Total $ 0 $ 0  
[1] Amounts are presented in other income, net.