Short-Term Borrowings and Long-Term Debt, Long-Term Debt (Details)		3 Months Ended					3 Months Ended												3 Months Ended
	Nov. 30, 2014 Term loan [Member] GBP (£)	Nov. 30, 2014 Revolving Credit Facility [Member] USD ($)	Nov. 30, 2014 Revolving Credit Facility [Member] Upon the affirmative vote [Member] USD ($)	Nov. 30, 2014 Letter of Credit [Member] USD ($)	Nov. 30, 2014 Letter of Credit [Member] Upon the affirmative vote [Member] USD ($)	Nov. 30, 2014 Term loan and revolving credit agreement [Member] USD ($)	Nov. 30, 2014 Unsecured variable rate notes due 2016 [Member] USD ($)	Nov. 30, 2014 1.750% unsecured notes due 2017 [Member] USD ($)	Nov. 30, 2014 2.700% unsecured notes due 2019 [Member] USD ($)	Nov. 30, 2014 2.875% unsecured Pound Sterling notes due 2020 [Member] GBP (£)	Nov. 30, 2014 3.300% unsecured notes due 2021 [Member] USD ($)	Nov. 30, 2014 3.800% unsecured notes due 2024 [Member] USD ($)	Nov. 30, 2014 3.600% unsecured Pound Sterling notes due 2025 [Member] GBP (£)	Nov. 30, 2014 2.125% unsecured Euro notes due 2026 [Member] EUR (€)	Nov. 30, 2014 4.500% unsecured notes due 2034 [Member] USD ($)	Nov. 30, 2014 4.800% unsecured notes due 2044 [Member] USD ($)	Nov. 30, 2014 US Dollar Notes [Member] USD ($)	Nov. 30, 2014 Pound Sterling Notes [Member] GBP (£)	Nov. 30, 2014 Euro and Pound Sterling Notes [Member] USD ($)
Long-Term Debt [Abstract]
Notes Issued							$ 750,000,000	$ 750,000,000	$ 1,250,000,000	£ 400,000,000	$ 1,250,000,000	$ 2,000,000,000	£ 300,000,000	€ 750,000,000	$ 500,000,000	$ 1,500,000,000	$ 8,000,000,000	£ 700,000,000
Maturity Date							May 18, 2016	Nov. 17, 2017	Nov. 18, 2019	Nov. 20, 2020	Nov. 18, 2021	Nov. 18, 2024	Nov. 20, 2025	Nov. 20, 2026	Nov. 18, 2034	Nov. 18, 2044
Interest Rate							Variable; three-month U.S. Dollar LIBOR, reset quarterly, plus 45 basis points	Fixed 1.750%	Fixed 2.700%	Fixed 2.875%	Fixed 3.300%	Fixed 3.800%	Fixed 3.600%	Fixed 2.125%	Fixed 4.500%	Fixed 4.800%
Interest Payment Dates							February 18, May 18, August 18, and November 18; commencing on February 18, 2015.	May 17 and November 17; commencing on May 17, 2015	May 18 and November 18; commencing on May 18, 2015		May 18 and November 18; commencing on May 18, 2015	May 18 and November 18; commencing on May 18, 2015			May 18 and November 18; commencing on May 18, 2015	May 18 and November 18; commencing on May 18, 2015
Debt instrument, description of variable rate basis							Three-month U.S. Dollar LIBOR
Basis spread on variable rate (in hundredths)							0.45%
Fixed interest rate (in hundredths)								1.75%	2.70%		3.30%	3.80%			4.50%	4.80%
Net proceeds from notes payable																	7,900,000,000
Total issuance costs																	44,000,000		11,000,000
Fair value of the notes																	8,200,000,000		2,000,000,000
Maturity date description								At any time in whole or from time to time in part	At any time prior to October 18, 2019 in whole or from time to time prior to October 18, 2019 in part		at any time prior to September 18, 2021 in whole or from time to time prior to September 18, 2021 in part	At any time prior to August 18, 2024 in whole or from time to time prior to August 18, 2024 in part			At any time prior to May 18, 2034 in whole or from time to time prior to May 18, 2034 in part	At any time prior to May 18, 2044 in whole or from time to time prior to May 18, 2044 in part
Percentage of principal amount of fixed rate notes can be redeemed (in hundredths)																	100.00%
Redemption of notes description																	Redemption price equal to the greater of : (1) 100% of the principal amount of the fixed rate notes being redeemed; and (2) the sum of the present values of the remaining scheduled payments of principal and interest thereon (not including any portion of such payments of interest accrued as of the redemption date), discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined in the applicable series of notes), plus 15 basis points for the notes due 2017, 15 basis points for the notes due 2019, 20 basis points for the notes due 2021, 20 basis points for the notes due 2024, 20 basis points for the notes due 2034 and 25 basis points for the notes due 2044.		(1) 100% of the principal amount of the notes to be redeemed; and (2) the sum of the present values of the remaining scheduled payments of principal and interest thereon (not including any portion of such payments of interest accrued as of the redemption date), discounted to the redemption date on an annual basis at the applicable Comparable Government Bond Rate (as defined in the applicable series of notes), plus 20 basis points for the Euro notes, 20 basis points for the Pound Sterling notes due 2020 and 20 basis points for the Pound Sterling notes due 2025.
Basis points added to treasury rate to calculate redemption rate								15	15		20	20			20	25			20
Percentage of redemption price (in hundredths)																	100.00%		100.00%
Percentage of principal amount required on triggering event to repurchase notes (in hundredths)																	101.00%		101.00%
Line of Credit Facility [Line Items]
Maximum borrowing capacity	1,450,000,000	2,250,000,000	3,000,000,000	375,000,000	500,000,000
Term of facility		5 years
Fees related to borrowings						$ 14,000,000