Consolidated Balance Sheets Detail - Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 28, 2022
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	$ 109	$ 114
Accumulated amortization	88	89
Net book value	21	25
Depreciation	10	12	$ 15
BlackBerry operations and other information technology
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	15	19
Leasehold improvements and other
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	85	84
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	3	2
Manufacturing, repair and research and development equipment
Property, Plant and Equipment [Line Items]
Cost of property, plant and equipment	$ 6	$ 9