v3.26.3
Cover
Oct. 22, 2026
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Oct. 22, 2026
Registrant Name Lumen Technologies, Inc.
Entity Incorporation, State or Country Code LA
Entity File Number 001-07784
Entity Tax Identification Number 72-0651161
Entity Address, Address Line One 100 CenturyLink Drive
Entity Address, City or Town Monroe,
Entity Address, State or Province LA
Entity Address, Postal Zip Code 71203
City Area Code 318
Local Phone Number 388-9000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Central Index Key 0000018926
Amendment Flag false
Common Stock  
Document Information [Line Items]  
Title of 12(b) Security Common Stock, no-par value per share
Trading Symbol LUMN
Security Exchange Name NASDAQ
6.5% Notes Due 2056 | Qwest Corporation  
Document Information [Line Items]  
Title of 12(b) Security 6.5% Notes Due 2056
Trading Symbol CTGG
Security Exchange Name NASDAQ
6.75% Notes Due 2057 | Qwest Corporation  
Document Information [Line Items]  
Title of 12(b) Security 6.75% Notes Due 2057
Trading Symbol CTHH
Security Exchange Name NASDAQ