Note 7 - Leases - Supplemental Balance Sheet (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Operating lease right-of-use assets, net (1)		$ 741	$ 680
Total operating lease liabilities		785
Total finance lease liabilities		183
Other Noncurrent Assets [Member]
Operating lease right-of-use assets, net (1)	[1]	741	680
Other Current Liabilities [Member]
Other current liabilities		94	96
Other Noncurrent Liabilities [Member]
Operating lease liabilities (2)	[2]	691	633
Other Liabilities [Member]
Total operating lease liabilities		785	729
Property and Equipment, Net [Member]
Property and equipment, at cost		200	184
Accumulated depreciation		(40)	(27)
Property and equipment, net		160	157
Current Portion of Long-term Debt [Member]
Current portion of long-term debt		15	10
Long-term Debt [Member]
Long-term debt		168	163
Current Portion of Long-term Debt and Long-term Debt [Member]
Total finance lease liabilities		$ 183	$ 173

[1] Included in other assets.

[2] Included in other liabilities.