Note 3 - Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Non-amortizable intangible assets, gross	$ 735	$ 747
Non-amortizable intangible assets, net	230	240
Indefinite Lived Intangible Assets, Excluding Goodwill, Gross	735	747
Accumulated Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	(505)	(507)
Trademarks and Trade Names 1 [Member]
Non-amortizable intangible assets, gross	74	75
Non-amortizable intangible assets, net	74	75
Indefinite Lived Intangible Assets, Excluding Goodwill, Gross	$ 74	75
Core Technology [Member]
Weighted average useful life (Year)	8 years
Finite-Lived Intangible Assets, Gross, Total	$ 130	133
Amortizable intangible assets, accumulated impairment and amortization	(93)	(94)
Amortizable intangible assets, net carrying amount	$ 37	39
Trademarks and Trade Names [Member]
Weighted average useful life (Year)	13 years
Finite-Lived Intangible Assets, Gross, Total	$ 29	30
Amortizable intangible assets, accumulated impairment and amortization	(7)	(6)
Amortizable intangible assets, net carrying amount	$ 22	24
Customer Relationships [Member]
Weighted average useful life (Year)	8 years
Finite-Lived Intangible Assets, Gross, Total	$ 502	509
Amortizable intangible assets, accumulated impairment and amortization	(405)	(407)
Amortizable intangible assets, net carrying amount	$ 97	$ 102