Revenue and Segment Disclosures Revenue classified by timing of recognition (Details) - USD ($) $ in Millions	3 Months Ended
	May 31, 2024	May 31, 2023
Revenue classified by timing of recognition [Line Items]
Revenues	$ 144.0	$ 373.0
Products and services transferred over time
Revenue classified by timing of recognition [Line Items]
Revenues	78.0	85.0
Products and services transferred at a point in time
Revenue classified by timing of recognition [Line Items]
Revenues	$ 66.0	$ 288.0