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Note 17 - Commitments and Contingencies - Environmental Liability Activity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Beginning	$ 233	$ 227	$ 223
Accruals	69	76	67
Payments	(59)	(70)	(63)
Balance	243	233	227
Balance, Current	$ 60	$ 65	$ 62

X

- Definition

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

+ References

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X

- Definition

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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