Investments Equity Method investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Aug. 31, 2023
Schedule of Equity Method Investments [Line Items]
Other Investments	$ 129,851		$ 129,885
Net income (loss) attributable to CHS Inc.	522,923	$ 782,598
Gross Profit	644,950	879,135
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	523,368	782,916
CF Nitrogen LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	2,640,655		2,577,391
Ventura Foods, LLC
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	481,236		519,169
Ardent Mills LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	235,778		265,146
Other Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	344,334		$ 337,281
CF Nitrogen LLC [Member]
Schedule of Equity Method Investments [Line Items]
Net income (loss) attributable to CHS Inc.	63,263	127,566
Revenues	878,045	1,623,268
Gross Profit	272,024	770,478
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 263,315	$ 764,179