Note 17 - Commitments and Contingencies - Environmental Liability Activity (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Balance	$ 253	$ 243	$ 233
Accruals	99	84	69
Payments	(107)	(74)	(59)
Balance	245	253	243
Balance, Current	$ 91	$ 67	$ 60

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

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

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Amount of cash outflow to settle environmental loss contingencies.

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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.

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