Quarterly report [Sections 13 or 15(d)]

Note 18 - Stock-based Compensation Plans (Details Textual)

v3.25.1
Note 18 - Stock-based Compensation Plans (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Share-Based Payment Arrangement, Expense, Tax Benefit $ 1,000,000 $ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) 0 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value $ 0 $ 1,000,000
Proceeds from Stock Options Exercised 0 0
Share-Based Payment Arrangement, Exercise of Option, Tax Benefit 0 0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture 2,000,000 $ 2,000,000
Share-Based Payment Arrangement, Option [Member]    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 0  
Performance Share Unit, Type 1 [Member]    
Share Based Compensation Arrangement by Share Based Payment Award, Performance Period (Year) 3 years 3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate 29.90% 31.80%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 4.31% 4.39%
Restricted Stock Units (RSUs) [Member]    
Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Vested Not Issued (in shares) 175,238  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares) 38,868  
Performance Shares [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares) 186,825  
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture $ 123,119  
Shares Issued, Value, Share-Based Payment Arrangement, Grant Date Fair Value (in dollars per share) $ 60.36  
Nonvested Shares [Member]    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 53,000,000  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 2 years 2 months 12 days  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value $ 25,000,000 $ 24,000,000
The 2016 Stock Incentive Plan [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) 4,000,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 3 years  
The 2016 Stock Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year) 10 years