Commiments and Contingencies Commiments and Contingencies (Tables)

6 Months Ended

Jun. 30, 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):

	June 30, 2023		December 31, 2022
Environmental reserves	$	27	$	27
Other reserves	16		—
Total contingencies	43		27
Current portion (included in Accounts payable and accrued liabilities)	(17)		(1)
Long-term portion	$	26	$	26