Note 12 - Pension and Postretirement Benefit Plans - Amounts Recognized in the Balance Sheet and Amounts Recognized in AOCI (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Amounts recognized in the consolidated balance sheet:
Noncurrent assets	$ 15	$ 3
Noncurrent liabilities	(398)	(479)
UNITED STATES | Pension Plan [Member]
Amounts recognized in the consolidated balance sheet:
Noncurrent assets	14	2
Noncurrent liabilities	(26)	(31)
Net amount recognized	(12)	(29)
Amounts recognized in AOCI:
Net actuarial loss (gain)	129	142
AOCI before tax	129	142
Deferred taxes	19	16
Net	148	158
UNITED STATES | Other Postretirement Benefits Plan [Member]
Amounts recognized in the consolidated balance sheet:
Noncurrent assets	0	0
Noncurrent liabilities	(3)	(4)
Net amount recognized	(3)	(4)
Amounts recognized in AOCI:
Net actuarial loss (gain)	1	2
AOCI before tax	1	2
Net	1	2
Foreign Plan [Member] | Pension Plan [Member]
Amounts recognized in the consolidated balance sheet:
Noncurrent assets	1	1
Current liabilities	(14)	(14)
Noncurrent liabilities	(306)	(356)
Net amount recognized	(319)	(369)
Amounts recognized in AOCI:
Net actuarial loss (gain)	76	108
AOCI before tax	76	108
Deferred taxes	(22)	(30)
Net	54	78
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]
Amounts recognized in the consolidated balance sheet:
Noncurrent assets	0	0
Current liabilities	(5)	(5)
Noncurrent liabilities	(63)	(88)
Net amount recognized	(68)	(93)
Amounts recognized in AOCI:
Net actuarial loss (gain)	(32)	(8)
AOCI before tax	(32)	(8)
Deferred taxes	9	3
Net	$ (23)	$ (5)