Equities Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2023	Nov. 30, 2022
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	$ 10,452,389	$ 9,461,266
Reversal of prior year patronage and redemption estimates	11,236	12,941
Equity Certificates Repurchased and Retired During Period, Value	(11,236)	(12,941)
Dividends, Preferred Stock, Cash	(84,334)	(84,334)
Stockholders' Equity, Other	(336)	343
Net income (loss)	523,368	782,916
Net income (loss) attributable to CHS Inc.	522,923	782,598
Net income attributable to noncontrolling interests	445	318
Other Comprehensive Income (Loss), Net of Tax	(7,302)	(13,618)
Patronage Refunds, Estimated	(93,198)	(208,864)
Equity Redemptions, Estimate	(93,198)	(208,864)
Ending Balance	10,697,389	9,728,845
Capital equity certificates [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	3,951,385	3,587,131
Reversal of prior year patronage and redemption estimates	11,236	12,941
Equity Certificates Repurchased and Retired During Period, Value	(8,287)	(10,021)
Stockholders' Equity, Other	34	291
Equity Redemptions, Estimate	(93,198)	(208,864)
Ending Balance	3,861,170	3,381,478
Nonpatronage Equity Certificates [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	27,558	27,933
Reversal of prior year patronage and redemption estimates	0	0
Equity Certificates Repurchased and Retired During Period, Value	(67)	(58)
Stockholders' Equity, Other	(3)
Ending Balance	27,488	27,875
Non-qualified Equity Certificates [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	1,932,706	1,776,172
Reversal of prior year patronage and redemption estimates	0	0
Equity Certificates Repurchased and Retired During Period, Value	(2,882)	(2,862)
Stockholders' Equity, Other	44	57
Net income (loss)
Ending Balance	1,929,868	1,773,367
Preferred Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	2,264,038	2,264,038
Equity Certificates Repurchased and Retired During Period, Value	0	0
Ending Balance	2,264,038	2,264,038
Accumulated Other Comprehensive Income (Loss) [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	(265,395)	(255,335)
Other Comprehensive Income (Loss), Net of Tax	(7,302)	(13,618)
Ending Balance	(272,697)	(268,953)
Capital Reserves [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	2,537,486	2,055,682
Reversal of prior year patronage and redemption estimates		0
Dividends, Preferred Stock, Cash	(84,334)	(84,334)
Stockholders' Equity, Other	(1,281)	20
Net income (loss) attributable to CHS Inc.	522,923	782,598
Patronage Refunds, Estimated	(93,198)	(208,864)
Ending Balance	2,881,596	2,545,102
Noncontrolling Interest [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	4,611	5,645
Stockholders' Equity, Other	870	(25)
Net income attributable to noncontrolling interests	445	318
Ending Balance	$ 5,926	$ 5,938