Investments Equity Method investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2024	May 31, 2023	Aug. 31, 2023
Schedule of Equity Method Investments [Line Items]
Other Investments	$ 140,107		$ 140,107		$ 129,885
Net income (loss) attributable to CHS Inc.	297,274	$ 547,499	990,504	$ 1,622,418
Gross Profit	467,795	674,340	1,478,637	1,937,742
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	297,255	$ 547,343	990,956	1,622,307
CF Nitrogen LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	2,652,631		2,652,631		2,577,391
Ventura Foods, LLC
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	504,454		504,454		519,169
Ardent Mills LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	236,350		236,350		265,146
Other Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	$ 360,107		360,107		$ 337,281
CF Nitrogen LLC [Member]
Schedule of Equity Method Investments [Line Items]
Net income (loss) attributable to CHS Inc.			218,905	330,855
Revenues			2,739,479	4,200,120
Gross Profit			956,835	1,898,265
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest			$ 922,400	$ 1,884,666