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Debt (Tables)
 6 Months Ended
Jun. 30, 2018
Debt Disclosure [Abstract]  
Revolving credit facilities

The following table summarizes the terms of the revolving credit agreements as of June 30, 2018:

 

TDS

 

U.S. Cellular

 

(Dollars in millions)

 

 

 

 

 

 

Maximum borrowing capacity

$

400 

 

$

300 

 

Letters of credit outstanding

$

1 

 

$

2 

 

Amount borrowed

$

– 

 

$

– 

 

Amount available for use

$

399 

 

$

298