Revenue and Segment Disclosures - Operating results by operating segments (Details) $ in Millions	3 Months Ended		6 Months Ended
	Aug. 31, 2023 USD ($)	Aug. 31, 2022 USD ($)	Aug. 31, 2023 USD ($) operatingSegment	Aug. 31, 2022 USD ($)
Segment Reporting [Abstract]
Number of Operating Segments | operatingSegment			3
Segment Reporting Information [Line Items]
Revenues	$ 132	$ 168	$ 505	$ 336
Cost of sales	47	62	241	126
Gross Profit	85	106	264	210
Cybersecurity
Segment Reporting Information [Line Items]
Revenues	79	111	172	224
Cost of sales	36	50	73	103
Gross Profit	43	61	99	121
IoT
Segment Reporting Information [Line Items]
Revenues	49	51	94	102
Cost of sales	8	9	17	17
Gross Profit	41	42	77	85
Licensing and Other
Segment Reporting Information [Line Items]
Revenues	4	6	239	10
Cost of sales	2	2	149	4
Gross Profit	2	4	90	6
Total Operating Segments
Segment Reporting Information [Line Items]
Revenues	132	168	505	336
Cost of sales	46	61	239	124
Gross Profit	$ 86	$ 107	$ 266	$ 212