Note 12 - Employee Retirement Plans - Change in Fair Value of Level 3 Assets for Defined Benefit Plan (Details) - Pension Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Foreign Plan [Member]
Balance	$ 584	$ 598
Balance	381	584
Collateralized Mortgage-Backed Securities [Member] | Foreign Plan [Member]
Balance	22
Balance	42	22
Insurance Contracts [Member] | Foreign Plan [Member]
Balance	2
Balance	192	2
Other [Member] | Foreign Plan [Member]
Balance	12
Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member]
Balance	24
Balance	245	24
Fair Value, Inputs, Level 3 [Member] | Private Equity Funds [Member]
Balance	41	51
Actual return on plan assets relating to assets still held at the reporting date	(8)	21
Asset (sales) purchases	(9)	(31)
Balance	24	41
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan, Real Estate [Member]
Balance	10	140
Actual return on plan assets relating to assets still held at the reporting date		1
Actual return on plan assets relating to assets sold during the reporting period		4
Asset (sales) purchases	(3)	(135)
Balance	7	10
Fair Value, Inputs, Level 3 [Member] | Collateralized Mortgage-Backed Securities [Member] | Foreign Plan [Member]
Balance	22	20
Actual return on plan assets relating to assets still held at the reporting date	1	2
Actual return on plan assets relating to assets sold during the reporting period	1
Asset (sales) purchases	18
Balance	42	22
Fair Value, Inputs, Level 3 [Member] | Insurance Contracts [Member] | Foreign Plan [Member]
Balance	2	3
Asset (sales) purchases	190	(1)
Balance	192	$ 2
Fair Value, Inputs, Level 3 [Member] | Other [Member] | Foreign Plan [Member]
Asset (sales) purchases	11
Balance	$ 11