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Note 13 - Debt - Schedule of Unsecured Debt (Details) (Parentheticals) - Unsecured Debt [Member]	6 Months Ended
	Jun. 30, 2023
The 4.750% Notes, Due February 21, 2026 [Member]
Debt Instrument, Interest Rate	4.75%
Debt Instrument, Maturity Date	Feb. 21, 2026
The 4.950% Notes, Due May 15, 2053 [Member]
Debt Instrument, Interest Rate	4.95%
Debt Instrument, Maturity Date	May 15, 2053

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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-Section 50
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X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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