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Note 15 - Commitments and Contingencies - Environmental Liability Activity (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Balance	$ 245	$ 253
Accruals	78	62
Payments	(50)	(50)
Balance	273	265
Balance, Current	$ 119	$ 78

X

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of expense for newly incurred environmental loss contingencies. Includes, but is not limited to, remediation expense and interest accretion.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
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X

- Definition

Amount of cash outflow to settle environmental loss contingencies.

+ References

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X

- Definition

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

+ References

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