Note 3 - Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Non-amortizable intangible assets, gross	$ 742	$ 747
Trademarks and trade names	228	240
Non-amortizable intangible assets, accumulated impairment and amortization	(514)	(507)
Trademarks and Trade Names 1 [Member]
Non-amortizable intangible assets, gross	75	75
Trademarks and trade names	$ 75	75
Core Technology [Member]
Weighted average useful life (Year)	8 years
Finite-Lived Intangible Assets, Gross, Total	$ 131	133
Amortizable intangible assets, accumulated impairment and amortization	(95)	(94)
Amortizable intangible assets, net carrying amount	$ 36	39
Trademarks and Trade Names [Member]
Weighted average useful life (Year)	13 years
Finite-Lived Intangible Assets, Gross, Total	$ 30	30
Amortizable intangible assets, accumulated impairment and amortization	(7)	(6)
Amortizable intangible assets, net carrying amount	$ 23	24
Customer Relationships [Member]
Weighted average useful life (Year)	8 years
Finite-Lived Intangible Assets, Gross, Total	$ 506	509
Amortizable intangible assets, accumulated impairment and amortization	(412)	(407)
Amortizable intangible assets, net carrying amount	$ 94	$ 102