Note 10 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Amortized intangible assets:
Other intangible assets, gross	$ 1,121	$ 971
Other intangible assets, accumulated amortization	325	265
Other intangible assets, net	796	706
Patents, Trademarks, and Trade Names [Member]
Amortized intangible assets:
Other intangible assets, gross	360	350
Other intangible assets, accumulated amortization	176	162
Other intangible assets, net	184	188
Customer Lists and Other [Member]
Amortized intangible assets:
Other intangible assets, gross	761	621
Other intangible assets, accumulated amortization	149	103
Other intangible assets, net	$ 612	$ 518