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Financing - Schedule of Debt (Detail) - USD ($) $ in Thousands | Aug. 31, 2019 | Apr. 18, 2019 | Aug. 25, 2018 | Apr. 18, 2017
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Commercial paper | $ 1,030,000 |  | $ 1,325,300 |
Total debt before discounts and debt issuance costs | 5,230,000 |  | 5,025,300 |
Less: Discounts and debt issuance costs | 23,656 |  | 19,370 |
Long-term debt | 5,206,344 |  | 5,005,930 |
1.625% Senior Notes due April 2019, effective interest rate of 1.77% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes |  |  | 250,000 |
4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 500,000 |  | 500,000 |
2.500% Senior Notes due April 2021, effective interest rate of 2.62% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 250,000 |  | 250,000 |
3.700% Senior Notes due April 2022, effective interest rate of 3.85% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 500,000 |  | 500,000 |
2.875% Senior Notes due January 2023, effective interest rate of 3.21% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 300,000 |  | 300,000 |
3.125% Senior Notes due July 2023, effective interest rate of 3.26% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 500,000 |  | 500,000 |
3.125% Senior Notes due April 2024, effective interest rate 3.32% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 300,000 | $ 300,000 |  |
3.250% Senior Notes due April 2025, effective interest rate 3.36% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 400,000 |  | 400,000 |
3.125% Senior Notes due April 2026, effective interest rate of 3.28% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 400,000 |  | 400,000 |
3.750% Senior Notes due June 2027, effective interest rate of 3.83% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | 600,000 |  | $ 600,000 | $ 600,000
3.750% Senior Notes due April 2029, effective interest rate of 3.86% [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 450,000 | $ 450,000 |  |

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