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Financing - Additional Information (Detail) |  |  |  |  | 3 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 18, 2017 USD ($) | Nov. 18, 2016 USD ($) | Apr. 21, 2016 USD ($) | Apr. 29, 2015 USD ($) | Nov. 18, 2016 USD ($) | May 06, 2017 | Aug. 26, 2017 USD ($) | Aug. 27, 2016 USD ($) | Aug. 29, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Remaining borrowing capacity under revolving credit facility |  |  |  |  |  |  | $ 1,997,000,000 |  |
Amount available under credit facility |  |  |  |  |  |  | $ 2,000,000,000 |  |
Credit Agreement description |  |  |  |  |  |  | Less than one year |  |
Line of credit facility covenant terms |  |  |  |  |  |  | The revolving credit facility agreements require that the Company's consolidated interest coverage ratio as of the last day of each quarter shall be no less than 2.5:1. This ratio is defined as the ratio of (i) consolidated earnings before interest, taxes and rents to (ii) consolidated interest expense plus consolidated rents. The Company's consolidated interest coverage ratio as of August 26, 2017 was 6.0:1. |  |
Minimum debt covenant interest coverage ratio to be maintained quarterly |  |  |  |  |  |  | 2.5 |  |
Debt covenant interest coverage ratio |  |  |  |  |  |  | 6.0 |  |
Proceeds from issuance of debt |  |  |  |  |  |  | $ 600,000,000 | $ 650,000,000 | $ 650,000,000
Repayment with commercial paper |  |  |  |  |  |  | 400,000,000 | 500,000,000 | $ 500,000,000
Fair value of the Company's debt |  |  |  |  |  |  | 5,171,000,000 | 5,117,000,000 |
Excess (shortfall) of fair value of debt over (from) carrying value |  |  |  |  |  |  | 90,300,000 | $ 192,700,000 |
Other Letters Of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Borrowings, outstanding |  |  |  |  |  |  | $ 10,400,000 |  |
New Multi-Year Revolving Credit Agreement [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Amount available under credit facility |  | $ 1,600,000,000 |  |  | $ 1,600,000,000 |  |  |  |
Extended expiration of credit facility |  | 2 years |  |  |  |  |  |  |
Maximum amount available under credit facility |  | $ 2,100,000,000 |  |  | 2,100,000,000 |  |  |  |
Interest accrual on foreign currency loans the basis points |  |  |  |  |  |  | Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the revolving credit facility, depending upon the Company's senior, unsecured, (non-credit enhanced) long-term debt rating. Interest accrues on base rate loans as defined in the credit facility. |  |
Credit facility expiration date |  |  |  |  |  |  | Nov. 18, 2021 |  |
Credit Agreement description |  |  |  |  |  |  | This credit facility is available to primarily support commercial paper borrowings, letters of credit and other short-term unsecured bank loans. The capacity of the credit facility may be increased to $2.1 billion prior to the maturity date at the Company’s election and subject to bank credit capacity and approval, and may include up to $200 million in letters of credit. Under the revolving credit facility, the Company may borrow funds consisting of Eurodollar loans, base rate loans or a combination of both. The Company also has the option to borrow funds under the terms of a swingline loan subfacility. The revolving credit facility expires on November 18, 2021, but the Company may, by notice to the administrative agent, make up to two requests to extend the termination date for an additional period of one year. The first such request must be made no earlier than 60 days, and no later than 45 days, prior to November 18, 2017, while the second request must be made no earlier than 60 days, and no later than 45 days, prior to November 18, 2018. |  |
Borrowings, outstanding |  |  |  |  |  |  | $ 0 |  |
Letters of credit, outstanding |  |  |  |  |  |  | 3,300,000 |  |
New Multi-Year Revolving Credit Agreement [Member] | Letters of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Maximum amount available under credit facility |  | 200,000,000 |  |  | 200,000,000 |  |  |  |
Multi Year Revolving Credit Agreement [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Amount available under credit facility |  | 1,250,000,000 |  |  | $ 1,250,000,000 |  |  |  |
New 364-Day Revolving Credit Agreement [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Extended expiration of credit facility |  |  |  |  | 1 year |  |  |  |
Maximum amount available under credit facility |  | 400,000,000 |  |  | $ 400,000,000 |  |  |  |
Credit facility expiration date |  |  |  |  |  | Nov. 17, 2017 |  |  |
Credit Agreement description |  |  |  |  |  | The credit facility is available to primarily support commercial paper borrowings and other short-term unsecured bank loans. Under the credit facility, the Company may borrow funds consisting of Eurodollar loans, base rate loans or a combination of both. The New 364-Day Credit Agreement expires on November 17, 2017, but the Company may request an extension of the termination date for 364 days no later than 45 days prior to November 17, 2017, subject to bank approval. In addition, at least 15 days prior to November 17, 2017, the Company has the right to convert the credit facility to a term loan for up to one year from the termination date, subject to a 1% penalty. |  |  |
Credit facility interest rate description |  |  |  |  |  | Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable margin, as defined in the revolving credit facility, depending upon the Company's senior, unsecured, (non-credit enhanced) long-term debt rating. Interest accrues on base rate loans as defined in the credit facility. |  |  |
Borrowings, outstanding |  |  |  |  |  |  | 0 |  |
New 364-Day Revolving Credit Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Term Loan Maturity Period |  |  |  |  |  | 1 year |  |  |
364-Day Revolving Credit Agreement [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Maximum amount available under credit facility |  | $ 500,000,000 |  |  | $ 500,000,000 |  |  |  |
Letters of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Maximum amount available under credit facility |  |  |  |  |  |  | 75,000,000 |  |
Borrowings, outstanding |  |  |  |  |  |  | 74,900,000 |  |
Term Loan [Member] | New 364-Day Revolving Credit Agreement [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Percentage of penalty for extending expiration period |  |  |  |  |  | 1.00% |  |  |
Term Loan [Member] | New 364-Day Revolving Credit Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Line of credit facility extension or modification period prior to expiration |  |  |  |  |  | 15 days |  |  |
3.750% Senior Notes due June 2027, effective interest rate of 3.83% [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | $ 600,000,000 |  |
Stated interest rate percentage | 3.75% |  |  |  |  |  | 3.75% | 3.75% |
Debt instrument maturity, month and year | 2027-06 |  |  |  |  |  | 2027-06 | 2027-06 |
Proceeds from issuance of debt | $ 600,000,000 |  |  |  |  |  |  |  |
Three Point OneTwo Five Senior Notes due April Two Thousand Twenty Six [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate percentage |  |  | 3.125% |  |  |  |  |  |
Debt instrument maturity, month and year |  |  | 2026-04 |  |  |  |  |  |
Proceeds from issuance of debt |  |  | $ 400,000,000 |  |  |  |  |  |
One Point Six Two Five Senior Notes due April Two Thousand nintheen [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate percentage |  |  | 1.625% |  |  |  |  |  |
Debt instrument maturity, month and year |  |  | 2019-04 |  |  |  |  |  |
Proceeds from issuance of debt |  |  | $ 250,000,000 |  |  |  |  |  |
7.125% Senior Notes due August 2018, effective interest rate of 7.28% [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | $ 250,000,000 | $ 250,000,000 |
Stated interest rate percentage |  |  |  |  |  |  | 7.125% | 7.125% |
Debt instrument maturity, month and year |  |  |  |  |  |  | 2018-08 | 2018-08 |
3.250% Senior Notes due April 2025, effective interest rate 3.36% [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | $ 400,000,000 | $ 400,000,000 |
Stated interest rate percentage |  |  |  | 3.25% |  |  | 3.25% | 3.25% |
Debt instrument maturity, month and year |  |  |  | 2025-04 |  |  | 2025-04 | 2025-04 |
Proceeds from issuance of debt |  |  |  | $ 400,000,000 |  |  |  |  |
2.500% Senior Notes due April 2021, effective interest rate of 2.62% [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | $ 250,000,000 | $ 250,000,000 |
Stated interest rate percentage |  |  |  | 2.50% |  |  | 2.50% | 2.50% |
Debt instrument maturity, month and year |  |  |  | 2021-04 |  |  | 2021-04 | 2021-04 |
Proceeds from issuance of debt |  |  |  | $ 250,000,000 |  |  |  |  |
5.750% Senior Notes due January 2015, effective interest rate of 5.89% [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate percentage |  |  |  | 5.75% |  |  |  |  |
Debt instrument maturity, month and year |  |  |  | 2015-01 |  |  |  |  |
Repayment with commercial paper |  |  |  | $ 500,000,000 |  |  |  |  |

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