Short-Term Borrowings and Long-Term Debt, Long-Term Debt (Details) $ in Millions		9 Months Ended
		May. 31, 2015 USD ($) $ / € $ / £		Aug. 31, 2014 USD ($)
Long-Term Debt [Abstract]
Loans assumed through the purchase of land and buildings	[1]	$ 33		$ 40
Other	[1]	35	[2]	0
Total long-term debt including current maturities	[1]	15,057		3,724
Less: current maturities	[1]	2		8
Total long term debt	[1]	15,055		3,716
Notes Due 2019 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 2,212		0
Maturity year	[1]	2019
Notes Due 2017 One [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 996		994
Stated interest rate (in hundredths)	[1]	1.80%
Maturity year	[1]	2017
Notes Due 2017 Two [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 746		0
Stated interest rate (in hundredths)	[1]	1.75%
Maturity year	[1]	2017
Notes Due 2019 One [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1],[3]	$ 1,020		1,007
Stated interest rate (in hundredths)	[1],[3]	5.25%
Maturity year	[1],[3]	2019
Notes Due 2019 Two [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 1,242		0
Stated interest rate (in hundredths)	[1]	2.70%
Maturity year	[1]	2019
Notes Due 2020 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1],[4]	$ 607		0
Stated interest rate (in hundredths)	[1],[4]	2.875%
Maturity year	[1],[4]	2020
Spot rate | $ / £	[1],[4]	1.53
Notes Due 2021 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 1,240		0
Stated interest rate (in hundredths)	[1]	3.30%
Maturity year	[1]	2021
Notes Due 2022 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 1,192		1,192
Stated interest rate (in hundredths)	[1]	3.10%
Maturity year	[1]	2022
Notes Due 2024 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 1,985		0
Stated interest rate (in hundredths)	[1]	3.80%
Maturity year	[1]	2024
Notes Due 2025 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1],[4]	$ 455		0
Stated interest rate (in hundredths)	[1],[4]	3.60%
Maturity year	[1],[4]	2025
Spot rate | $ / £	[1],[4]	1.53
Notes Due 2026 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1],[5]	$ 817		0
Stated interest rate (in hundredths)	[1],[5]	2.125%
Maturity year	[1],[5]	2026
Spot rate | $ / €	[1],[5]	1.10
Notes Due 2034 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 494		0
Stated interest rate (in hundredths)	[1]	4.50%
Maturity year	[1]	2034
Notes Due 2042 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 492		491
Stated interest rate (in hundredths)	[1]	4.40%
Maturity year	[1]	2042
Notes Due 2044 [Member]
Long-Term Debt [Abstract]
Carrying value of notes, net of unamortized discount and interest rate swap FMV adjustment	[1]	$ 1,491		$ 0
Stated interest rate (in hundredths)	[1]	4.80%
Maturity year	[1]	2044

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

[2] Other long-term debt represents a mix of fixed and variable rate borrowings in various foreign currencies with various maturities.

[3] Also includes interest rate swap fair market value adjustments, see Note 11, Fair Value Measurements for additional fair value disclosures.

[4] Pound Sterling denominated notes are translated at the May 31, 2015 spot rate of $1.53 to one British Pound Sterling.

[5] Euro denominated notes are translated at the May 31, 2015 spot rate of $1.10 to one Euro.