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Note 6 - Leases - Summary of Location and Amounts Related to Finance Leases (Details) (Parentheticals) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Assets [Abstract]      
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization $ 2,214 $ 2,311 $ 2,193
Liabilities, Current [Abstract]      
Long-Term Debt and Lease Obligation, Current 214 35  
Liabilities, Noncurrent [Abstract]      
Long-Term Debt and Lease Obligation $ 2,389 $ 2,598  
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization  
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Long-Term Debt and Lease Obligation, Current Long-Term Debt and Lease Obligation, Current  
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Long-Term Debt and Lease Obligation Long-Term Debt and Lease Obligation