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Note 8 - Debt (Details Textual) $ in Thousands, ¥ in Billions	3 Months Ended
	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2022 JPY (¥)	Dec. 31, 2021 USD ($)
Long-Term Debt and Lease Obligation, Total			$ 6,525,000			$ 6,989,000
Debentures Due in 2022 [Member]
Extinguishment of Debt, Amount		$ 375,000
Debt Instrument, Interest Rate, Stated Percentage		2.90%
Payment for Debt Extinguishment or Debt Prepayment Cost		$ 10,000
Gain (Loss) on Extinguishment of Debt, Total		$ (11,000)
Debentures Due in 2023 [Member]
Extinguishment of Debt, Amount	$ 250,000
Debt Instrument, Interest Rate, Stated Percentage	3.70%
Payment for Debt Extinguishment or Debt Prepayment Cost	$ 19,000
Gain (Loss) on Extinguishment of Debt, Total	$ (20,000)
Commercial Paper [Member]
Short-Term Debt, Total			0			0
Incremental Liquidity Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity				$ 173,000,000	¥ 25
Revolving Credit Facility [Member] \| Amended Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity				$ 1,500,000
Fair Value, Inputs, Level 2 [Member]
Long-Term Debt, Fair Value			$ 5,900,000			$ 8,300,000