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Document And Entity Information - Jun. 30, 2015 - shares
Total
Entity Registrant Name TELEPHONE & DATA SYSTEMS INC /DE/
Entity Central Index Key 0001051512
Document Type 10-Q
Document Period End Date Jun. 30, 2015
Amendment Flag false
Current Fiscal Year End Date --12-31
Entity Filer Category Large Accelerated Filer
Document Fiscal Year Focus 2015
Document Fiscal Period Focus Q2
Trading Symbol TDS
Common Shares  
Entity Common Stock, Shares Outstanding 101,363,899
Series A Common Shares  
Entity Common Stock, Shares Outstanding 7,196,018