Note 10 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill, Gross	$ 8,900	$ 9,000
Goodwill, Impaired, Accumulated Impairment Loss	6,500	6,500
Amortization of Intangible Assets, Total	129	$ 121	$ 113
Disposal Group, Including Discontinued Operation, Intangible Assets	24
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss)	7
Finite-Lived Intangible Asset, Expected Amortization, Year One	120
Finite-Lived Intangible Asset, Expected Amortization, Year Two	120
Finite-Lived Intangible Asset, Expected Amortization, Year Three	120
Finite-Lived Intangible Asset, Expected Amortization, Year Four	120
Finite-Lived Intangible Asset, Expected Amortization, Year Five	$ 120