Note 3 - Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Amortizable intangible assets, accumulated impairment and amortization	$ (541)	$ (543)
Intangible Assets, Gross (Excluding Goodwill), Total	791	779
Intangible Assets, Net (Excluding Goodwill), Total	250	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	(103)	(103)
Amortizable intangible assets, net carrying amount	$ 59	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	(10)	(9)
Amortizable intangible assets, net carrying amount	$ 21	22
Customer Relationships [Member]
Weighted average useful life (Year)	8 years
Amortizable intangible assets, gross carrying amount	$ 523	525
Amortizable intangible assets, accumulated impairment and amortization	(428)	(431)
Amortizable intangible assets, net carrying amount	$ 95	$ 94