Investments - Schedule of Equity Method Investment - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2020
Schedule of Equity Method Investments [Line Items]
Assets, Current	$ 9,377,847	$ 7,998,951
Liabilities, Current	6,951,969	6,326,013
Revenues	47,791,666	38,448,033	$ 28,406,365
Gross Profit	2,126,921	951,399	981,807
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	1,677,901	553,569	423,609
Earnings attributable to CHS Inc.	1,678,762	553,952	422,439
CF Industries Nitrogen
Schedule of Equity Method Investments [Line Items]
Assets, Current	1,333,170	850,048
Assets, Noncurrent	5,787,921	6,248,315
Liabilities, Current	391,470	301,174
Liabilities, Noncurrent	1,895	2,454
Revenues	6,609,758	2,975,983	2,522,827
Gross Profit	3,318,189	866,880	570,901
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	3,249,005	809,536	529,462
Earnings attributable to CHS Inc.	593,182	198,439	127,954
Ventura Foods, Ardent Mills and TEMCO
Schedule of Equity Method Investments [Line Items]
Assets, Current	2,596,440	2,005,077
Assets, Noncurrent	2,688,846	2,599,619
Liabilities, Current	1,274,802	1,002,705
Liabilities, Noncurrent	1,051,040	939,732
Revenues	9,736,072	9,481,862	8,223,247
Gross Profit	1,127,209	892,426	636,799
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	582,408	398,740	148,383
Earnings attributable to CHS Inc.	$ 135,770	$ 121,858	$ 32,594