Note 12 - Pension and Postretirement Benefit Plans - Aggregate Funding Levels of Defined Benefit Pension Plans (Details) - Pension Plan [Member] - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
UNITED STATES
Plans with fair value of plan assets in excess of obligations:
Accumulated benefit obligation	$ 568	$ 16
Projected benefit obligation	568	16
Fair value of plan assets	582	17
Plans with obligations in excess of fair value of plan assets:
Accumulated benefit obligation	177	794
Projected benefit obligation	177	794
Fair value of plan assets	151	764
Foreign Plan [Member]
Plans with fair value of plan assets in excess of obligations:
Accumulated benefit obligation	12	14
Projected benefit obligation	12	14
Fair value of plan assets	13	15
Plans with obligations in excess of fair value of plan assets:
Accumulated benefit obligation	344	391
Projected benefit obligation	372	424
Fair value of plan assets	$ 52	$ 54

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- Definition

If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with plan assets in excess of accumulated benefit obligations as of the measurement date of each statement of financial position presented.

+ References

No definition available.

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If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with plan assets in excess of accumulated benefit obligations as of the measurement date of each statement of financial position presented.

+ References

No definition available.

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If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with plan assets in excess of accumulated benefit obligations as of the measurement date of each statement of financial position presented.

+ References

No definition available.

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Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Subparagraph (b)
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- Definition

Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920

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