Investments - Schedule of Equity Method Investment - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Schedule of Equity Method Investments [Line Items]
Assets, Current	$ 9,128,649	$ 9,377,847
Liabilities, Current	5,899,194	6,951,969
Revenues	45,590,004	47,791,666	$ 38,448,033
Gross Profit	2,376,265	2,126,921	951,399
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	1,900,124	1,677,901	553,569
Earnings attributable to CHS Inc.	1,900,438	1,678,762	553,952
CF Industries Nitrogen
Schedule of Equity Method Investments [Line Items]
Assets, Current	899,246	1,333,170
Assets, Noncurrent	5,355,732	5,787,921
Liabilities, Current	281,153	391,470
Liabilities, Noncurrent	1,128	1,895
Revenues	5,070,489	6,609,758	2,975,983
Gross Profit	2,194,363	3,318,189	866,880
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	2,173,715	3,249,005	809,536
Earnings attributable to CHS Inc.	394,678	593,182	198,439
Ventura Foods, LLC
Schedule of Equity Method Investments [Line Items]
Assets, Current	1,041,799	801,568
Assets, Noncurrent	609,021	618,310
Liabilities, Current	335,000	313,438
Liabilities, Noncurrent	303,209	311,982
Revenues	3,552,194	3,386,998	2,584,532
Gross Profit	547,107	333,368	350,708
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	406,271	117,666	151,196
Earnings attributable to CHS Inc.	$ 203,136	$ 58,833	$ 78,519