Related Party Transactions (Details 2)	6 Months Ended
Related Party Transactions (Details 2)	Jan. 31, 2021 USD ($)
Payment of related party expenses beginning	$ 302,144
Additions	333,653
Payments	162,000
Payment of related party expenses ending	473,797
Former Director [Member]
Payment of related party expenses beginning	35,000
Additions	0
Payments	0
Payment of related party expenses ending	35,000
Chief Operating Officer [Member]
Payment of related party expenses beginning	0
Additions	116,179
Payments	22,500
Payment of related party expenses ending	93,679
Former President, Subsidiary [Member]
Payment of related party expenses beginning	67,500
Additions	0
Payments	0
Payment of related party expenses ending	67,500
CEO, Parent [Member]
Payment of related party expenses beginning	90,000
Additions	45,000
Payments	0
Payment of related party expenses ending	135,000
Chief Technology Officer [Member]
Payment of related party expenses beginning	15,000
Additions	15,000
Payments	32,500
Payment of related party expenses ending	(2,500)
Former CEO, Subsidiary [Member]
Payment of related party expenses beginning	67,500
Additions	0
Payments	0
Payment of related party expenses ending	67,500
Chief Project Manager [Member]
Payment of related party expenses beginning	0
Additions	157,474
Payments	107,000
Payment of related party expenses ending	50,474
Former Chief Agricultural Officer, Subsidiary [Member]
Payment of related party expenses beginning	27,144
Additions	0
Payments	0
Payment of related party expenses ending	$ 27,144

GREEN HYGIENICS HOLDINGS INC. 10-Q