Note 13 - Employee Retirement Plans - International Defined Benefit Plan Assets (Details) - Pension Plan [Member] - Foreign Plan [Member] - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair value of plan assets	$ 584	$ 598	$ 518
Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	476	482
Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	84	93
Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	24	23
Debt Security, Corporate, Non-US [Member]
Fair value of plan assets	500	519
Debt Security, Corporate, Non-US [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	416	426
Debt Security, Corporate, Non-US [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	84	93
Insurance Contracts [Member]
Fair value of plan assets	2	3
Insurance Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	2	3	2
Collateralized Mortgage Backed Securities [Member]
Fair value of plan assets	22	20
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	22	20	$ 21
Defined Benefit Plan, Cash and Cash Equivalents [Member]
Fair value of plan assets	60	56
Defined Benefit Plan, Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	$ 60	$ 56