Trade Accounts Receivable Securitization and Sale Programs (Additional Information) (Details 1) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2013
Trade Accounts Receivable Sale Programs
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Trade accounts receivable sold	$ 2,100.0	$ 1,900.0	$ 2,400.0
Cash proceeds from new transfers	$ 2,100.0	1,900.0	2,400.0
Asset-Backed Securitization Programs
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Percentage of trade accounts receivable sold to conduits by special purpose entities	100.00%
Trade accounts receivable sold	$ 7,600.0	8,000.0	9,000.0
Cash proceeds for the sale of trade accounts receivable	7,200.0	7,400.0	8,500.0
Cash proceeds from new transfers	5.9	4.0	54.2
Deferred purchases price receivable	429.3	513.0	541.2
Pretax losses on sale of trade accounts receivable	$ (3.8)	$ (3.6)	$ (4.3)
North American Asset-Backed Securitization Program
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Trade accounts receivable sale agreement expiration date	Oct. 20, 2017
Maximum net cash proceeds available at any one time under asset-backed securitization program and sales program	$ 200.0
Foreign Asset-Backed Securitization Program
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Trade accounts receivable sale agreement expiration date	May 01, 2018
Foreign Asset-Backed Securitization Program | Before amendment
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Maximum net cash proceeds available at any one time under asset-backed securitization program and sales program	$ 75.0
Foreign Asset-Backed Securitization Program | After amendment
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Maximum net cash proceeds available at any one time under asset-backed securitization program and sales program	$ 175.0
450.0 Million Dollar Trade Accounts Receivable Sale Program | Trade Accounts Receivable Sale Programs
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Trade accounts receivable sale agreement expiration date	Nov. 01, 2015
Minimum number of days notice required to cancel receivable sale agreements	15 days
Agreement extension date	Aug. 31, 2017
Minimum number of days notice required to not automatically extend receivable sale agreements	30 days
450.0 Million Dollar Trade Accounts Receivable Sale Program | Trade Accounts Receivable Sale Programs | Before amendment
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Maximum net cash proceeds available at any one time under asset-backed securitization program and sales program	$ 350.0
450.0 Million Dollar Trade Accounts Receivable Sale Program | Trade Accounts Receivable Sale Programs | After amendment
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Maximum net cash proceeds available at any one time under asset-backed securitization program and sales program	$ 450.0
150.0 Million Dollar Trade Accounts Receivable Sale Program | Trade Accounts Receivable Sale Programs
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Trade accounts receivable sale agreement expiration date	Aug. 31, 2016
Maximum net cash proceeds available at any one time under asset-backed securitization program and sales program	$ 150.0
100.0 Million Dollar Trade Accounts Receivable Sale Program | Trade Accounts Receivable Sale Programs
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Trade accounts receivable sale agreement expiration date	Nov. 01, 2015
Maximum net cash proceeds available at any one time under asset-backed securitization program and sales program	$ 100.0
Minimum number of days notice required to cancel receivable sale agreements	15 days
Agreement extension date	Nov. 01, 2018
Minimum number of days notice required to not automatically extend receivable sale agreements	30 days