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Note 19 - Retirement Plans - Components of the Pension Obligation (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Service cost $ 0 $ 0 $ 0
Interest cost 1 2 1
Fair value of plan assets at beginning of period 3,546    
Fair value of plan assets at end of period 3,128 3,546  
Other Postretirement Benefits Plan [Member]      
Net benefit obligation at beginning of period 43 43  
Interest cost 1 2  
Benefit payments (2) (2)  
Actuarial (gain) loss 1 0  
Net benefit obligation at end of period 43 43 43
UNITED STATES      
Over (under) funded status at end of period 944 1,160  
UNITED STATES | Pension Plan [Member]      
Net benefit obligation at beginning of period 2,386 2,482  
Service cost 13 13 13
Interest cost 109 117 80
Benefit payments (269) (283)  
Plan Amendments 0 29  
Actuarial (gain) loss (56) 28  
Special termination benefits 1 0  
Currency adjustments 0 0  
Net benefit obligation at end of period 2,184 2,386 2,482
Fair value of plan assets at beginning of period 3,546 3,659  
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) (149) 170  
Employer contributions 0 0  
Benefit payments (269) (283)  
Currency adjustments 0 0  
Fair value of plan assets at end of period 3,128 3,546 3,659
Over (under) funded status at end of period 944 1,160  
Accumulated benefit obligation at end of period 2,181 2,384  
Foreign Plan [Member]      
Over (under) funded status at end of period (52) (60)  
Foreign Plan [Member] | Pension Plan [Member]      
Net benefit obligation at beginning of period 588 577  
Service cost 2 2 3
Interest cost 18 20 9
Benefit payments (41) (43)  
Plan Amendments 0 0  
Actuarial (gain) loss (12) 12  
Special termination benefits 0 0  
Currency adjustments (9) 20  
Net benefit obligation at end of period 546 588 577
Fair value of plan assets at beginning of period 528 526  
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) 5 25  
Employer contributions 5 6  
Benefit payments (41) (43)  
Currency adjustments (3) 14  
Fair value of plan assets at end of period 494 528 $ 526
Over (under) funded status at end of period (52) (60)  
Accumulated benefit obligation at end of period $ 538 $ 579