Summary of significant accounting policies (Tables)

12 Months Ended

Jul. 31, 2022

Significant Accounting Policies [Line Items]

Summary of income tax expense

	For the year ended July 31,
	2022		2021		2020
Current expense	$	974	$	739	$	297
Deferred expense		7		2		554
Income tax expense	$	981	$	741	$	851

Deferred tax assets and liabilities

	July 31,
	2022		2021
Deferred tax assets (included in Other assets, net)	$	4	$	5
Deferred tax liabilities (included in Other liabilities)		(9)		(3)
Net deferred tax (liability) asset	$	(5)	$	2

Ferrellgas, L.P. [Member]

Significant Accounting Policies [Line Items]

Summary of income tax expense

	For the year ended July 31,
	2022		2021		2020
Current expense	$	969	$	725	$	248
Deferred expense		7		2		554
Income tax expense	$	976	$	727	$	802

Deferred tax assets and liabilities

	July 31,
	2022		2021
Deferred tax assets (included in Other assets, net)	$	4	$	5
Deferred tax liabilities (included in Other liabilities)		(9)		(3)
Net deferred tax (liability) asset	$	(5)	$	2