Note 3 - Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Amortizable intangible assets, accumulated impairment and amortization	$ (550)	$ (543)
Intangible Assets, Gross (Excluding Goodwill), Total	790	779
Intangible Assets, Net (Excluding Goodwill), Total	240	236
Trademarks and Trade Names 1 [Member]
Non-amortizable intangible assets, gross	75	77
Trademarks and trade names	$ 75	77
Core Technology [Member]
Weighted average useful life (Year)	8 years
Amortizable intangible assets, gross carrying amount	$ 162	146
Amortizable intangible assets, accumulated impairment and amortization	(108)	(103)
Amortizable intangible assets, net carrying amount	$ 54	43
Trademarks and Trade Names [Member]
Weighted average useful life (Year)	13 years
Amortizable intangible assets, gross carrying amount	$ 31	31
Amortizable intangible assets, accumulated impairment and amortization	(11)	(9)
Amortizable intangible assets, net carrying amount	$ 20	22
Customer Relationships [Member]
Weighted average useful life (Year)	8 years
Amortizable intangible assets, gross carrying amount	$ 522	525
Amortizable intangible assets, accumulated impairment and amortization	(431)	(431)
Amortizable intangible assets, net carrying amount	$ 91	$ 94