Borrowings, Short-Term Borrowings (Details) - USD ($) $ in Millions		12 Months Ended
		Aug. 31, 2016	Aug. 31, 2015
Short-Term Borrowings [Abstract]
Other		$ 323	$ 1,068
Unsecured Pound Sterling Variable Rate Term Loan Due 2019 [Member]
Short-Term Borrowings [Abstract]
Unsecured notes	[1]	$ 63	0
Maturity year	[1]	2019
Unsecured Variable Rate Notes Due 2016 [Member]
Short-Term Borrowings [Abstract]
Unsecured notes	[1]	$ 0	747
Maturity year	[1]	2016
Other Short-Term Debt [Member]
Short-Term Borrowings [Abstract]
Other	[1],[2]	$ 260	321
Total short-term borrowings	[1]	$ 323	$ 1,068

[1] All notes are presented net of unamortized discount and debt issuance costs, where applicable.

[2] Other short-term borrowings represent a mix of fixed and variable rate borrowings with various maturities and working capital facilities denominated in various foreign currencies including bank overdrafts.