Commiments and Contingencies Commiments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2023

Legal and Environmental Matters [Abstract]

Schedule of Loss Contingencies by Contingency [Table Text Block]

We maintain reserves for various contingent liabilities as follows (dollar amounts in millions):

	March 31, 2023		December 31, 2022
Environmental reserves	$	27	$	27
Other reserves	—		—
Total contingencies	27		27
Current portion (included in Accounts payable and accrued liabilities)	(1)		(1)
Long-term portion	$	26	$	26