Depositary Shares each representing a 1/1000th interest in a share of 6.625% Series UU Cumulative Redeemable Perpetual Preferred Stock, $.01 par value PreferredStockMember1 [Member] TDS Series UU preferred shares may provide a preferential dividend to the dividend on common stock and may take precedence over common stock in the event of a liquidation. Preferred shares typically represent an ownership interest in the company. Entity Tax Identification Number Entity Tax Identification Number Entity File Number Entity File Number Common Shares Common Class B [Member] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Title of 12(b) Security Title of 12(b) Security Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Soliciting Material Soliciting Material Entity Address, Address Line One Entity Address, Address Line One Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Entity Address, State or Province Entity Address, State or Province Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Written Communications Written Communications Trading Symbol Trading Symbol City Area Code City Area Code Statement [Table] Statement [Table] Depositary Shares each representing a 1/1000th interest in a share of 6.000% Series VV Cumulative Redeemable Perpetual Preferred Stock, $.01 par value PreferredStockMember2 [Member] TDS Series VV preferred shares may provide a preferential dividend to the dividend on common stock and may take precedence over common stock in the event of a liquidation. Preferred shares typically represent an ownership interest in the company. Document Period End Date Document Period End Date Amendment Flag Amendment Flag Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, City or Town Entity Address, City or Town Statement [Line Items] Statement [Line Items] Security Exchange Name Security Exchange Name Document Type Document Type Class of Stock [Axis] Class of Stock [Axis] Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Central Index Key Entity Central Index Key Entity Emerging Growth Company Entity Emerging Growth Company