XML 104 R65.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Revenue Recognition - Revenue by Segment, Sales Channel and Product Category (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | $ 13,108 | $ 14,557 | $ 17,478
Adjustments for Non-ASC 606 Revenue | (979) | (1,036) | (1,370)
Total Revenue from Contracts with Customers | 12,129 | 13,521 | 16,108
Goods and services transferred at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue from Contracts with Customers | 136 | 178 | 154
Services performed over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue from Contracts with Customers | 11,993 | 13,343 | 15,954
Business |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 10,363 | 11,583 | 13,099
Mass Markets |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 2,745 | 2,974 | 4,379
Operating Segments | Business |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 10,363 | 11,583 | 13,099
Adjustments for Non-ASC 606 Revenue | (830) | (858) | (1,017)
Total Revenue from Contracts with Customers | 9,533 | 10,725 | 12,082
Operating Segments | Business | Grow |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 4,373 | 4,494 | 4,618
Adjustments for Non-ASC 606 Revenue | (657) | (654) | (757)
Total Revenue from Contracts with Customers | 3,716 | 3,840 | 3,861
Operating Segments | Business | Nurture |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 2,961 | 3,493 | 4,128
Adjustments for Non-ASC 606 Revenue | (19) | (25) | (23)
Total Revenue from Contracts with Customers | 2,942 | 3,468 | 4,105
Operating Segments | Business | Harvest |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 2,271 | 2,679 | 3,411
Adjustments for Non-ASC 606 Revenue | (148) | (170) | (226)
Total Revenue from Contracts with Customers | 2,123 | 2,509 | 3,185
Operating Segments | Business | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 758 | 917 | 942
Adjustments for Non-ASC 606 Revenue | (6) | (9) | (11)
Total Revenue from Contracts with Customers | 752 | 908 | 931
Operating Segments | Business | Large Enterprise |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 3,379 | 3,618 | 3,827
Adjustments for Non-ASC 606 Revenue | (257) | (184) | (208)
Total Revenue from Contracts with Customers | 3,122 | 3,434 | 3,619
Operating Segments | Business | Large Enterprise | Grow |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 1,733 | 1,709 | 1,653
Adjustments for Non-ASC 606 Revenue | (256) | (179) | (199)
Total Revenue from Contracts with Customers | 1,477 | 1,530 | 1,454
Operating Segments | Business | Large Enterprise | Nurture |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 1,015 | 1,172 | 1,274
Adjustments for Non-ASC 606 Revenue | 0 | 0 | 0
Total Revenue from Contracts with Customers | 1,015 | 1,172 | 1,274
Operating Segments | Business | Large Enterprise | Harvest |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 441 | 537 | 690
Adjustments for Non-ASC 606 Revenue | 0 | 0 | (2)
Total Revenue from Contracts with Customers | 441 | 537 | 688
Operating Segments | Business | Large Enterprise | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 190 | 200 | 210
Adjustments for Non-ASC 606 Revenue | (1) | (5) | (7)
Total Revenue from Contracts with Customers | 189 | 195 | 203
Operating Segments | Business | Mid-Market Enterprise |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 1,887 | 2,044 | 2,242
Adjustments for Non-ASC 606 Revenue | (34) | (36) | (40)
Total Revenue from Contracts with Customers | 1,853 | 2,008 | 2,202
Operating Segments | Business | Mid-Market Enterprise | Grow |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 841 | 807 | 768
Adjustments for Non-ASC 606 Revenue | (25) | (28) | (32)
Total Revenue from Contracts with Customers | 816 | 779 | 736
Operating Segments | Business | Mid-Market Enterprise | Nurture |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 690 | 829 | 949
Adjustments for Non-ASC 606 Revenue | 0 | 0 | 0
Total Revenue from Contracts with Customers | 690 | 829 | 949
Operating Segments | Business | Mid-Market Enterprise | Harvest |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 320 | 372 | 494
Adjustments for Non-ASC 606 Revenue | (4) | (4) | (6)
Total Revenue from Contracts with Customers | 316 | 368 | 488
Operating Segments | Business | Mid-Market Enterprise | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 36 | 36 | 31
Adjustments for Non-ASC 606 Revenue | (5) | (4) | (2)
Total Revenue from Contracts with Customers | 31 | 32 | 29
Operating Segments | Business | Public Sector |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 1,849 | 1,789 | 1,863
Adjustments for Non-ASC 606 Revenue | (89) | (82) | (84)
Total Revenue from Contracts with Customers | 1,760 | 1,707 | 1,779
Operating Segments | Business | Public Sector | Grow |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 596 | 473 | 445
Adjustments for Non-ASC 606 Revenue | (85) | (81) | (79)
Total Revenue from Contracts with Customers | 511 | 392 | 366
Operating Segments | Business | Public Sector | Nurture |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 355 | 399 | 492
Adjustments for Non-ASC 606 Revenue | 0 | 0 | 0
Total Revenue from Contracts with Customers | 355 | 399 | 492
Operating Segments | Business | Public Sector | Harvest |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 389 | 383 | 466
Adjustments for Non-ASC 606 Revenue | (4) | (1) | (3)
Total Revenue from Contracts with Customers | 385 | 382 | 463
Operating Segments | Business | Public Sector | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 509 | 534 | 460
Adjustments for Non-ASC 606 Revenue | 0 | 0 | (2)
Total Revenue from Contracts with Customers | 509 | 534 | 458
Operating Segments | Business | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 2,875 | 3,152 | 3,605
Adjustments for Non-ASC 606 Revenue | (446) | (441) | (509)
Total Revenue from Contracts with Customers | 2,429 | 2,711 | 3,096
Operating Segments | Business | Wholesale | Grow |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 1,048 | 1,052 | 991
Adjustments for Non-ASC 606 Revenue | (287) | (251) | (271)
Total Revenue from Contracts with Customers | 761 | 801 | 720
Operating Segments | Business | Wholesale | Nurture |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 740 | 827 | 1,012
Adjustments for Non-ASC 606 Revenue | (19) | (25) | (23)
Total Revenue from Contracts with Customers | 721 | 802 | 989
Operating Segments | Business | Wholesale | Harvest |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 1,079 | 1,261 | 1,551
Adjustments for Non-ASC 606 Revenue | (140) | (165) | (215)
Total Revenue from Contracts with Customers | 939 | 1,096 | 1,336
Operating Segments | Business | Wholesale | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 8 | 12 | 51
Adjustments for Non-ASC 606 Revenue | 0 | 0 | 0
Total Revenue from Contracts with Customers | 8 | 12 | 51
Operating Segments | Business | International and Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 373 | 980 | 1,562
Adjustments for Non-ASC 606 Revenue | (4) | (115) | (176)
Total Revenue from Contracts with Customers | 369 | 865 | 1,386
Operating Segments | Business | International and Other | Grow |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 155 | 453 | 761
Adjustments for Non-ASC 606 Revenue | (4) | (115) | (176)
Total Revenue from Contracts with Customers | 151 | 338 | 585
Operating Segments | Business | International and Other | Nurture |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 161 | 266 | 401
Adjustments for Non-ASC 606 Revenue | 0 | 0 | 0
Total Revenue from Contracts with Customers | 161 | 266 | 401
Operating Segments | Business | International and Other | Harvest |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 42 | 126 | 210
Adjustments for Non-ASC 606 Revenue | 0 | 0 | 0
Total Revenue from Contracts with Customers | 42 | 126 | 210
Operating Segments | Business | International and Other | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 15 | 135 | 190
Adjustments for Non-ASC 606 Revenue | 0 | 0 | 0
Total Revenue from Contracts with Customers | 15 | 135 | 190
Operating Segments | Mass Markets |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 2,745 | 2,974 | 4,379
Adjustments for Non-ASC 606 Revenue | (149) | (178) | (353)
Total Revenue from Contracts with Customers | 2,596 | 2,796 | 4,026
Operating Segments | Mass Markets | Fiber Broadband |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 736 | 637 | 604
Adjustments for Non-ASC 606 Revenue | (13) | (16) | (18)
Total Revenue from Contracts with Customers | 723 | 621 | 586
Operating Segments | Mass Markets | Other Broadband |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 1,167 | 1,395 | 2,163
Adjustments for Non-ASC 606 Revenue | (105) | (126) | (200)
Total Revenue from Contracts with Customers | 1,062 | 1,269 | 1,963
Operating Segments | Mass Markets | Voice and Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total Revenue | 842 | 942 | 1,612
Adjustments for Non-ASC 606 Revenue | (31) | (36) | (135)
Total Revenue from Contracts with Customers | $ 811 | $ 906 | $ 1,477

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 8: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 924 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-4 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue that is not accounted for under Topic 606. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_RevenueNotFromContractWithCustomer
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 48 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 6: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-05(b)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477314/942-235-S99-1 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredAtPointInTimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredOverTimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lumn_BusinessSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lumn_MassMarketSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=lumn_GrowMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=lumn_NurtureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=lumn_HarvestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=lumn_OtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerSalesChannelAxis=lumn_LargeEnterpriseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerSalesChannelAxis=lumn_MidMarketEnterpriseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerSalesChannelAxis=lumn_PublicSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerSalesChannelAxis=lumn_WholesaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerSalesChannelAxis=lumn_InternationalAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=lumn_FiberBroadbandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=lumn_OtherBroadbandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=lumn_VoiceAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |