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Asset Retirement Obligations

9 Months Ended

Sep. 30, 2022

Asset Retirement Obligation Disclosure [Abstract]

Note 9 Asset Retirement Obligations

Asset retirement obligations are included in Other deferred liabilities and credits in the Consolidated Balance Sheet.

During the three months ended September 30, 2022, UScellular performed a review of the assumptions and estimated future costs related to asset retirement obligations. The results of the review and other changes in asset retirement obligations during the nine months ended September 30, 2022 were as follows:


	Asset Retirement Obligations
(Dollars in millions)
Balance at December 31, 2021	$	315
Additional liabilities accrued	3
Revisions in estimated cash outflows	12
Disposition of assets	(1)
Accretion expense	13
Balance at September 30, 2022	$	342