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Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2020
Fair Value Disclosures [Abstract]  
Fair value measurements
TDS has applied the provisions of fair value accounting for purposes of computing the fair value of financial instruments for disclosure purposes as displayed below.
 
Level within the Fair Value Hierarchy
 
June 30, 2020
 
December 31, 2019
 
Book Value
 
Fair Value
 
Book Value
 
Fair Value
(Dollars in millions)
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
1
 
$
565

 
$
565

 
$
465

 
$
465

Long-term debt
 
 
 
 
 
 
 
 
 
Retail
2
 
1,753

 
1,732

 
1,753

 
1,796

Institutional
2
 
535

 
630

 
534

 
594

Other
2
 
259

 
258

 
84

 
84