Rendering

Component: (Network and Table)
Network
31000 - Disclosure - Asset Retirement Obligation (Tables)
(http://www.tdsinc.com/role/AssetRetirementObligationTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Asset Retirement Obligation [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
Asset Retirement Obligation [Abstract]
 
Asset retirement obligations

In 2016 and 2015, U.S. Cellular and TDS Telecom performed a review of the assumptions and estimated costs related to asset retirement obligations.  The results of the reviews (identified as “Revisions in estimated cash outflows”) and other changes in asset retirement obligations during 2016 and 2015 were as follows:

 

2016

 

2015

(Dollars in millions)

 

 

 

 

 

Balance at beginning of year

$

243 

 

$

239 

 

Additional liabilities accrued

 

1 

 

 

2 

 

Revisions in estimated cash outflows

 

7 

 

 

(4)

 

Disposition of assets

 

(1)

 

 

(10)

 

Accretion expense

 

16 

 

 

16 

Balance at end of year

$

266 

 

$

243