Consolidated Balance Sheets Detail - Property, Plant and Equipment (Details) - USD ($) $ in Millions	Aug. 31, 2024	Feb. 29, 2024
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	$ 104	$ 109
Accumulated amortization	87	88
Net book value	17	21
BlackBerry operations and other information technology
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	85	85
Leasehold improvements and other
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	12	15
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	5	6
Manufacturing, repair and research and development equipment
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	$ 2	$ 3