Regulatory Matters, Commitments, Contingencies And Environmental Liabilities Regulatory Matters, Commitments, Contingencies And Environmental Liabilities (Tables)

12 Months Ended

Dec. 31, 2021

Environmental Exit Costs by Cost [Table Text Block]

The table below reflects the amounts of accrued liabilities recorded in our consolidated balance sheets related to environmental matters that are considered to be probable and reasonably estimable. Currently, we are not able to estimate possible losses or a range of possible losses in excess of amounts accrued. Except for matters discussed above, we do not have any material environmental matters assessed as reasonably possible that would require disclosure in our consolidated financial statements.


	December 31,
	2021		2020
Current	$	46	$	44
Non-current	247		262
Total environmental liabilities	$	293	$	306

Right of way (20 to 83 years)

Other Commitments

We have certain non-cancelable rights-of-way (“ROW”) commitments, which require fixed payments and either expire upon our chosen abandonment or at various dates in the future. The table below reflects ROW expense included in operating expenses in the accompanying statements of operations:


	Years Ended December 31,
	2021		2020		2019
ROW expense	$	48	$	47	$	45