Note 13 - Goodwill and Intangible Assets - Summary of Changes in Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Goodwill, gross	$ 1,559	$ 1,545
Goodwill, Net additions	1,211	14
Goodwill, dispositions	(22)
Goodwill, gross	2,748	1,559
Accumulated goodwill impairment	(99)	(99)
Accumulated goodwill impairment	(99)	(99)
Goodwill	1,460	1,446
Goodwill	$ 2,649	$ 1,460

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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