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Revenue Recognition - Governmental Funding (Details) unreservedLocations in Millions, $ in Millions |  | 3 Months Ended | 12 Months Ended | 84 Months Ended
--- | --- | --- | --- | ---
Dec. 07, 2020 USD ($) unreservedLocations | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Government Assistance [Line Items] |  |  |  |
Government funding |  |  | $ 190 |
Government Assistance, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  | OPERATING REVENUE |
State Universal Service Fund Support Programs |  |  |  |
Government Assistance [Line Items] |  |  |  |
Government assistance, percentage |  |  | 31.00% |
CAF II Program |  |  |  |
Government Assistance [Line Items] |  |  |  |
Government funding |  | $ 59 |  | $ 500
RDOF Phase I Program |  |  |  |
Government Assistance [Line Items] |  |  |  |
Allocated support payments | $ 9,200 |  |  |
Support payments period | 10 years |  |  |
Number of unserved locations | unreservedLocations | 5.2 |  |  |
Government funding receivable | $ 26 |  |  |
RDOF Phase I Program | ILEC Business |  |  |  |
Government Assistance [Line Items] |  |  |  |
Government assistance, percentage | 36.00% |  |  |

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- Definition Government Assistance Receivable + References No definition available. + Details
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- Definition Amount of government assistance recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 832 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128342832&loc=SL128342943-244231 + Details
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- Definition Indicates line item in statement of income or comprehensive income that includes government assistance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 832 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128342832&loc=SL128342943-244231 + Details
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- Definition Duration of government assistance transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 832 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128342832&loc=SL128342950-244231 + Details
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