Cover
Jan. 31, 2022
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Jan. 31, 2022
Entity Registrant Name BlackBerry Limited
Entity Incorporation, State or Country Code Z4
Entity File Number 001-38232
Entity Tax Identification Number 98-0164408
Entity Address, Address Line One 2200 University Ave East
Entity Address, City or Town Waterloo
Entity Address, State or Province ON
Entity Address, Country CA
Entity Address, Postal Zip Code N2K 0A7
City Area Code 519
Local Phone Number 888-7465
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0001070235
Amendment Flag false
NEW YORK STOCK EXCHANGE, INC. [Member]  
Document Information [Line Items]  
Title of 12(g) Security Common Shares
Trading Symbol BB
Security Exchange Name NYSE