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Revenue Recognition - Disaggregation Of Revenue (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | $ 5,293 | $ 5,220 | $ 5,120
Out-of-period adjustment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Immaterial error correction |  | During the third quarter of 2021, UScellular recorded a $9 million out-of-period error related to the timing of recognition of regulatory fee billings. This adjustment had the impact of increasing Service revenue by $9 million in 2021. UScellular determined that this adjustment was not material to any of the periods impacted. |
Transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 4,120 | $ 4,107 | 4,031
Transferred over time | Retail service |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 2,793 | 2,757 | 2,681
Transferred over time | Inbound roaming |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 67 | 110 | 152
Transferred over time | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 669 | 641 | 594
Transferred over time | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 173 | 183 | 194
Transferred over time | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 173 | 178 | 184
Transferred over time | Other service |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 245 | 238 | 226
Transferred at point in time | Equipment and product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 1,173 | 1,113 | 1,089
UScellular |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 4,076 | 4,039 | 3,960
UScellular | Transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 3,032 | 3,032 | 2,990
UScellular | Transferred over time | Retail service |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 2,793 | 2,757 | 2,681
UScellular | Transferred over time | Retail service | Prior period reclassification |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers |  | (8) | (5)
UScellular | Transferred over time | Retail service | Out-of-period adjustment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers |  | 9 |
UScellular | Transferred over time | Inbound roaming |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 67 | 110 | 152
UScellular | Transferred over time | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
UScellular | Transferred over time | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
UScellular | Transferred over time | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
UScellular | Transferred over time | Other service |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 172 | 165 | 157
UScellular | Transferred over time | Other service | Prior period reclassification |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers |  | 8 | 5
UScellular | Transferred at point in time | Equipment and product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 1,044 | 1,007 | 970
TDS Telecom |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 1,016 | 1,003 | 973
TDS Telecom | Transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 1,015 | 1,002 | 972
TDS Telecom | Transferred over time | Retail service |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
TDS Telecom | Transferred over time | Inbound roaming |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
TDS Telecom | Transferred over time | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 669 | 641 | 594
TDS Telecom | Transferred over time | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 173 | 183 | 194
TDS Telecom | Transferred over time | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 173 | 178 | 184
TDS Telecom | Transferred over time | Other service |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
TDS Telecom | Transferred at point in time | Equipment and product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 1 | 1 | 1
Corporate, Eliminations and Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 201 | 178 | 187
Corporate, Eliminations and Other | Transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 73 | 73 | 69
Corporate, Eliminations and Other | Transferred over time | Retail service |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
Corporate, Eliminations and Other | Transferred over time | Inbound roaming |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
Corporate, Eliminations and Other | Transferred over time | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
Corporate, Eliminations and Other | Transferred over time | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
Corporate, Eliminations and Other | Transferred over time | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
Corporate, Eliminations and Other | Transferred over time | Other service |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 73 | 73 | 69
Corporate, Eliminations and Other | Transferred at point in time | Equipment and product sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | $ 128 | $ 105 | $ 118

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