Annual report pursuant to Section 13 and 15(d)

Income Taxes - Narrative (Details)

v3.22.1
Income Taxes - Narrative (Details) - USD ($)
$ in Millions
Feb. 28, 2022
Feb. 28, 2021
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]    
Operating loss carryforwards $ 3,200.0  
Operating loss carryforwards subject to expire by fiscal 2027 1,800.0  
Operating loss carryforwards subject to expire between fiscal 2028 and fiscal 2041 900.0  
Operating loss carryforwards not subject to expiration 500.0  
Unrecognized tax benefit liabilities 322.6 $ 268.9
Unrecognized tax benefit liabilities that would impact effective tax rate if recognized 279.0 $ 236.1
Minimum    
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]    
Estimate of change in unrecognized tax benefit liabilities reasonably possible as a result of examination or expiration of statutes of limitation 1.0  
Maximum    
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]    
Estimate of change in unrecognized tax benefit liabilities reasonably possible as a result of examination or expiration of statutes of limitation $ 5.0