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Document And Entity Information
 6 Months Ended
Jun. 30, 2014
Entity Registrant Name United States Cellular Corporation
Entity Central Index Key 0000821130
Document Type 10-Q
Document Period End Date Jun. 30, 2014
Amendment Flag false
Current Fiscal Year End Date --12-31
Entity Filer Category Accelerated Filer
Document Fiscal Year Focus 2014
Document Fiscal Period Focus Q2
Trading Symbol USM
Common Shares
  
Entity Common Stock, Shares Outstanding 51,301,351
Series A Common Shares
  
Entity Common Stock, Shares Outstanding 33,005,877