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Other Noncurrent Liabilities

12 Months Ended

Dec. 31, 2023

Other Liabilities Disclosure [Abstract]

Other Noncurrent Liabilities

Other Non-Current Liabilities

Other non-current liabilities consisted of the following:

			December 31, 2023						December 31, 2022
Asset retirement obligations			$	84					$	81
Accrued environmental expense, long-term			12						12
Other			20						18
Other non-current liabilities			$	116					$	111

We record an asset retirement obligation for the estimated future cost to remove underground storage tanks. Revisions to the liability could occur due to changes in tank removal costs, tank useful lives or if federal and/or state regulators enact new guidance on

the removal of such tanks. Changes in the carrying amount of asset retirement obligations for the years ended December 31, 2023 and 2022 were as follows:

			Year Ended December 31,
			2023						2022
Balance at beginning of year			$	81					$	79
Liabilities incurred			—						—
Liabilities settled			(1)						(2)
Accretion expense			4						4
Balance at end of year			$	84					$	81

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The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as noncurrent at the end of the reporting period.

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