Note 23 - Segment Information (Details Textual) $ in Millions	3 Months Ended
	Sep. 30, 2020 USD ($) a	Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Increase (Reduction) in reserves impacted	$ 9	$ 2
Gross Profit [Member]
Segment Reporting Information [Line Items]
Increase (Reduction) in reserves impacted	6	1
Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Increase (Reduction) in reserves impacted	2	$ 1
R&D [Member]
Segment Reporting Information [Line Items]
Increase (Reduction) in reserves impacted	$ 1
Eastman Business Park [Member] | Minimum [Member]
Segment Reporting Information [Line Items]
Area of Real Estate Property | a	1,200