Annual report [Section 13 and 15(d), not S-K Item 405]

Cover

v3.25.4
Cover - USD ($)
 12 Months Ended
Dec. 31, 2025
Feb. 03, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-34295    
Entity Registrant Name SIRIUS XM HOLDINGS INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 93-4680139    
Entity Address, Address Line One 1221 Avenue of the Americas    
Entity Address, Address Line Two 35th Floor    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10020    
City Area Code 212    
Local Phone Number 584-5100    
Title of 12(b) Security Common stock, $0.001 par value    
Trading Symbol SIRI    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 7,407,294,638
Entity Common Stock, Shares Outstanding   334,772,877  
Documents Incorporated by Reference
Information included in our definitive proxy statement for our 2026 annual meeting of stockholders is incorporated by reference into Items 10, 11, 12, 13 and 14 of Part III of this report.
    
Entity Central Index Key 0000908937    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false