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DEBT - Narrative (Details)
1 Months Ended 9 Months Ended
Mar. 31, 2021
USD ($)
Sep. 30, 2020
USD ($)
Mar. 27, 2021
USD ($)
Apr. 30, 2021
GBP (£)
Mar. 27, 2021
GBP (£)
Sep. 26, 2020
Debt [Line Items]            
Maximum board-authorized aggregate commercial paper limit     $ 2,000,000,000.0      
Minimum            
Debt [Line Items]            
Commercial paper average outstanding     413,700,000      
Maximum            
Debt [Line Items]            
Commercial paper average outstanding     1,500,000,000      
Line of Credit | Revolving Credit Facility            
Debt [Line Items]            
Long-term revolving credit facility     2,000,000,000.0      
Borrowings outstanding under revolving credit facility     0      
Line of Credit | Revolving Credit Facility | Subsequent Event            
Debt [Line Items]            
Pay down of revolving credit facility $ 700,000,000          
Commercial paper            
Debt [Line Items]            
Carrying value of total debt     $ 0      
Commercial paper | Commercial Paper, 0.454%            
Debt [Line Items]            
Long-term revolving credit facility | £         £ 600,000,000.0  
Borrowings outstanding under revolving credit facility | £         £ 300,000,000.0  
Commercial paper | Commercial Paper, 0.454% | Subsequent Event            
Debt [Line Items]            
Borrowings outstanding under revolving credit facility | £       £ 200,000,000    
Senior Notes | 2.60% Senior Notes            
Debt [Line Items]            
Repayments of senior notes   $ 750,000,000        
Interest rate   2.60%       2.60%