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Financing - Schedule of Debt (Parenthetical) (Detail)
8 Months Ended 12 Months Ended
May 09, 2020
Aug. 31, 2019
Mar. 30, 2020
Commercial paper, weighted average interest rate of 2.28% at August 31, 2019      
Debt Instrument [Line Items]      
Weighted average interest rate of commercial paper   2.28%  
4.000% Senior Notes due November 2020, effective interest rate of 4.43%      
Debt Instrument [Line Items]      
Stated interest rate percentage 4.00% 4.00%  
Effective interest rate 4.43% 4.43%  
Debt instrument maturity, month and year 2020-11 2020-11  
2.500% Senior Notes due April 2021, effective interest rate of 2.62%      
Debt Instrument [Line Items]      
Stated interest rate percentage 2.50% 2.50%  
Effective interest rate 2.62% 2.62%  
Debt instrument maturity, month and year 2021-04 2021-04  
3.700% Senior Notes due April 2022, effective interest rate of 3.85%      
Debt Instrument [Line Items]      
Stated interest rate percentage 3.70% 3.70%  
Effective interest rate 3.85% 3.85%  
Debt instrument maturity, month and year 2022-04 2022-04  
2.875% Senior Notes due January 2023, effective interest rate of 3.21%      
Debt Instrument [Line Items]      
Stated interest rate percentage 2.875% 2.875%  
Effective interest rate 3.21% 3.21%  
Debt instrument maturity, month and year 2023-01 2023-01  
3.125% Senior Notes due July 2023, effective interest rate of 3.26%      
Debt Instrument [Line Items]      
Stated interest rate percentage 3.125% 3.125%  
Effective interest rate 3.26% 3.26%  
Debt instrument maturity, month and year 2023-07 2023-07  
3.125% Senior Notes due April 2024, effective interest rate 3.32%      
Debt Instrument [Line Items]      
Stated interest rate percentage 3.125% 3.125%  
Effective interest rate 3.32% 3.32%  
Debt instrument maturity, month and year 2024-04 2024-04  
3.250% Senior Notes due April 2025, effective interest rate 3.36%      
Debt Instrument [Line Items]      
Stated interest rate percentage 3.25% 3.25%  
Effective interest rate 3.36% 3.36%  
Debt instrument maturity, month and year 2025-04 2025-04  
3.625% Senior Notes due April 2025, effective interest rate 3.78%      
Debt Instrument [Line Items]      
Stated interest rate percentage 3.625%   3.625%
Effective interest rate 3.78%    
Debt instrument maturity, month and year 2025-04    
3.125% Senior Notes due April 2026, effective interest rate of 3.28%      
Debt Instrument [Line Items]      
Stated interest rate percentage 3.125% 3.125%  
Effective interest rate 3.28% 3.28%  
Debt instrument maturity, month and year 2026-04 2026-04  
3.750% Senior Notes due June 2027, effective interest rate of 3.83%      
Debt Instrument [Line Items]      
Stated interest rate percentage 3.75% 3.75%  
Effective interest rate 3.83% 3.83%  
Debt instrument maturity, month and year 2027-06 2027-06  
3.750% Senior Notes due April 2029, effective interest rate of 3.86%      
Debt Instrument [Line Items]      
Stated interest rate percentage 3.75% 3.75%  
Effective interest rate 3.86% 3.86%  
Debt instrument maturity, month and year 2029-04 2029-04  
4.000% Senior Notes due April 2030, effective interest rate 4.09%      
Debt Instrument [Line Items]      
Stated interest rate percentage 4.00%   4.00%
Effective interest rate 4.09%    
Debt instrument maturity, month and year 2030-04