Note 13 - Employee Retirement Plans - Estimated Future Benefit Payments and Gross Medicare to be Receive (Details) $ in Millions	Dec. 31, 2021 USD ($)
Pension Plan [Member] \| UNITED STATES
2022	$ 232
2023	233
2024	242
2025	251
2026	254
2027-2031	1,333
Pension Plan [Member] \| Foreign Plan [Member]
2022	28
2023	34
2024	33
2025	36
2026	40
2027-2031	221
Other Postretirement Benefits Plan [Member]
2022	33
2023	33
2024	33
2025	33
2026	33
2027-2031	$ 166

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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