v3.19.3
Document and Entity Information
Oct. 09, 2019
Cover [Abstract]  
Entity Incorporation, State or Country Code DE
Current Fiscal Year End Date --12-31
Amendment Flag false
Entity Central Index Key 0001283699
Document Type 8-K
Document Period End Date Oct. 09, 2019
Entity Registrant Name T-MOBILE US, INC.
Entity File Number 1-33409
Entity Tax Identification Number 20-0836269
Entity Address, Address Line One 12920 SE 38th Street
Entity Address, City or Town Bellevue
Entity Address, State or Province WA
Entity Address, Postal Zip Code 98006-1350
City Area Code 425
Local Phone Number 378-4000
Written Communications false
Entity Emerging Growth Company false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.00001 par value per share
Trading Symbol TMUS
Security Exchange Name NASDAQ