Equities schedule of stock (Tables)

12 Months Ended

Aug. 31, 2017

Class of Stock [Line Items]

Schedule of Stock by Class [Table Text Block]

The following is a summary of our outstanding preferred stock as of August 31, 2017, all shares of which are listed on the Global Select Market of NASDAQ:

	NASDAQ symbol	Issuance date	Shares outstanding	Redemption value		Net proceeds (a)		Dividend rate  (b) (c)		Dividend payment frequency	Redeemable beginning (d)
				(Dollars in millions)
8% Cumulative Redeemable	CHSCP	(e)	12,272,003	$	306.8	$	311.2	8.00	%	Quarterly	7/18/2023
Class B Cumulative Redeemable, Series 1	CHSCO	(f)	21,459,066	$	536.5	$	569.3	7.875	%	Quarterly	9/26/2023
Class B Reset Rate Cumulative Redeemable, Series 2	CHSCN	3/11/2014	16,800,000	$	420.0	$	406.2	7.10	%	Quarterly	3/31/2024
Class B Reset Rate Cumulative Redeemable, Series 3	CHSCM	9/15/2014	19,700,000	$	492.5	$	476.7	6.75	%	Quarterly	9/30/2024
Class B Cumulative Redeemable, Series 4	CHSCL	1/21/2015	20,700,000	$	517.5	$	501.0	7.50	%	Quarterly	1/21/2025