Capital Stock - Subsequent event (Details) - shares	3 Months Ended
	May 31, 2020	May 31, 2019	Jun. 22, 2020	Feb. 29, 2020
Equity [Abstract]
Common outstanding (in shares)	555,622,606			554,199,016
Class of Stock [Line Items]
Common outstanding (in shares)	555,622,606			554,199,016
Conversion of stock (in shares)	60,500,000	60,500,000
Voting Common Stock [Member] | Subsequent Event [Member]
Equity [Abstract]
Common outstanding (in shares)			556,000,000
Class of Stock [Line Items]
Common outstanding (in shares)			556,000,000
Employee Stock Option [Member] | Subsequent Event [Member]
Equity [Abstract]
Common outstanding (in shares)			5,000,000
Class of Stock [Line Items]
Common outstanding (in shares)			5,000,000
Restricted Share Units (RSUs) | Subsequent Event [Member]
Equity [Abstract]
Common outstanding (in shares)			24,000,000
Class of Stock [Line Items]
Common outstanding (in shares)			24,000,000
Deferred Share Unit | Subsequent Event [Member]
Equity [Abstract]
Common outstanding (in shares)			1,000,000
Class of Stock [Line Items]
Common outstanding (in shares)			1,000,000