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Asset Retirement Obligation (Table)

12 Months Ended

Dec. 31, 2019

Asset Retirement Obligation [Abstract]

Asset retirement obligations

In 2019 and 2018, U.S. Cellular performed a review of the assumptions and estimated costs related to its asset retirement obligations. The results of the reviews (identified as Revisions in estimated cash outflows) and other changes in asset retirement obligations during 2019 and 2018, were as follows:

	2019				2018
(Dollars in millions)
Balance at beginning of year	$	203			$	183
Additional liabilities accrued	2				2
Revisions in estimated cash outflows	2				8
Disposition of assets	(1		)		(1		)
Accretion expense	14				12
Transferred to Liabilities held for sale	—				(1		)
Balance at end of year	$	220			$	203

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- References

No definition available.

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- Definition

Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859

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