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

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Name:	us-gaap_AccrualForEnvironmentalLossContingencies
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Note 9 - Commitments and Contingencies (Details Textual) $ in Millions		3 Months Ended
	May 31, 2016	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 01, 2016
Environmental Litigation [Member]
Number of Hazardous Waste Sites		19
Accrual for Environmental Loss Contingencies		$ 101	$ 109
Dow Corning Corporation [Member] \| Dow Corning Chapter 11 Related Matters [Member]
Equity Method Investment, Ownership Percentage				50.00%
Indemnification of Excess Liability	50.00%
Dow Corning Corporation [Member] \| Dow Corning Environmental Claims [Member]
Indemnification of Excess Liability		50.00%