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Noncontrolling Interests (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Noncontrolling Interest [Abstract]      
Net income attributable to TDS shareholders $ 62 $ 156 $ 226
Transfer (to) from the noncontrolling interests      
Change in TDS’ Capital in excess of par value from UScellular's issuance of UScellular shares (19) (49) (38)
Change in TDS’ Capital in excess of par value from UScellular’s repurchases of UScellular shares 35 17 14
Purchase of ownership in subsidiaries from noncontrolling interests 0 0 (9)
Net transfers (to) from noncontrolling interests 16 (32) (33)
Net income attributable to TDS shareholders after transfers (to) from noncontrolling interests 78 $ 124 $ 193
Redeemable noncontrolling interest      
Settlement value of mandatorily redeemable noncontrolling interests 20    
Carrying value of mandatorily redeemable noncontrolling interests $ 6