Committments and Contingent Liabilities (Tables)

12 Months Ended

Dec. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

Schedule of Loss Contingencies by Contingency [Table Text Block]

maintain reserves for various contingent liabilities as follows:

	December 31,
	2021		2020
Environmental reserves	$	25	$	14
Other reserves	—		—
Total contingencies	25		14
Current portion*	(1)		(1)
Long-term portion	$	24	$	13

*The current portion of the contingency reserve is included in Accounts payable and accrued liabilities on our Consolidated Balance Sheets.

Schedule of Environmental Loss Contingencies by Site [Table Text Block]

The activity in our reserve for estimated environmental loss contingency reserves is summarized in the following table.

	Year Ended December 31,
	2021		2020
Beginning balance	$	13	$	10
Adjustments to expense during the year (other operating credits charges, net and cost of sales)	7		2
Adjustments to amounts to be paid by a third party	6		2
Payments made	(1)		(1)
Ending balance	$	25	$	13