Note 8 - Revenue 1 (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Contract with Customer, Liability	$ 97		$ 100
Contract with Customer, Liability, Revenue Recognized	21
Contract with Customer, Cash Payments Received for Liabilities That Have Been Deferred	18	$ 21
Revenue, Remaining Performance Obligation, Amount	95
Other Current Assets [Member]
Contract with Customer, Asset, after Allowance for Credit Loss, Current	1		1
Other Current Liabilities [Member]
Contract with Customer, Liability	35		37
Other Noncurrent Liabilities [Member]
Contract with Customer, Liability	$ 61		$ 63