Note 7 - Debt (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Long-Term Debt and Lease Obligation	$ 6,654,000	$ 6,687,000
Commercial Paper [Member]
Short-Term Debt	0	0
Fair Value, Inputs, Level 2 [Member]
Long-Term Debt, Fair Value	$ 6,400,000	$ 6,100,000

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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