Consolidated Balance Sheets Detail - Property, Plant and Equipment (Details) - USD ($) $ in Millions	May 31, 2024	Feb. 29, 2024
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	$ 108	$ 109
Accumulated amortization	89	88
Net book value	19	21
BlackBerry operations and other information technology
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	86	85
Leasehold improvements and other
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	14	15
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	6	6
Manufacturing, repair and research and development equipment
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	$ 2	$ 3