Document And Entity Information	3 Months Ended
Mar. 31, 2015
Entity Registrant Name	United States Cellular Corporation
Entity Central Index Key	0000821130
Document Type	10-Q
Document Period End Date	Mar. 31, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	USM
Common Shares
Entity Common Stock, Shares Outstanding	51,029,748
Series A Common Shares
Entity Common Stock, Shares Outstanding	33,005,877

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other".

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