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Debt - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Aug. 09, 2023
Dec. 19, 2022
Jun. 17, 2022
Nov. 17, 2021
Nov. 15, 2021
Feb. 29, 2024
Feb. 28, 2023
Aug. 31, 2023
Debt Instrument [Line Items]                
Interest paid           $ 301 $ 288  
Maximum                
Debt Instrument [Line Items]                
Debt to total capitalization ratio           0.60    
Commercial paper                
Debt Instrument [Line Items]                
Commercial paper               $ 0
Weighted average interest rate           6.45%    
Unsecured Notes | 0.9500% unsecured notes due 2023                
Debt Instrument [Line Items]                
Face amount       $ 850        
Stated interest rate       0.95%   0.95%    
Redemption percentage       100.00%        
Amount outstanding           $ 40   $ 0
Credit facilities                
Debt Instrument [Line Items]                
Remaining borrowing capacity           5,800    
Credit facilities           40    
Credit facilities | August 2023 Revolving Credit Agreement                
Debt Instrument [Line Items]                
Face amount $ 2,250              
Debt term 3 years              
Borrowing outstanding           40    
Credit facilities | August 2023 Revolving Credit Agreement | Maximum | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate 1.50%              
Credit facilities | August 2023 Revolving Credit Agreement | Minimum | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate 0.75%              
Credit facilities | Unsecured Credit Facility, Due August 2023                
Debt Instrument [Line Items]                
Face amount $ 1,000              
Borrowing outstanding           1,000    
Credit facilities | Unsecured Credit Facility, Due August 2023 | Maximum | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate 1.50%              
Credit facilities | Unsecured Credit Facility, Due August 2023 | Minimum | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate 0.75%              
Credit facilities | Unsecured Credit Facility, 3 Year Term, Due 2026                
Debt Instrument [Line Items]                
Face amount   $ 1,000            
Borrowing outstanding           1,000    
Credit facilities | Unsecured Credit Facility, 3 Year Term, Due 2026 | Maximum | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate   1.50%            
Credit facilities | Unsecured Credit Facility, 3 Year Term, Due 2026 | Minimum | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate   0.875%            
Credit facilities | June 17, 2022 Revolving Credit Facility, Five-Year Term                
Debt Instrument [Line Items]                
Face amount     $ 3,500          
Debt term     5 years          
Borrowing outstanding           0    
Credit facilities | June 17, 2022 Revolving Credit Facility, 18-Month Facility                
Debt Instrument [Line Items]                
Face amount     $ 1,500          
Debt term     18 months          
Credit facilities | June 17, 2022 Revolving Credit Facility, 18-Month Facility | Maximum                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate     1.50%          
Credit facilities | June 17, 2022 Revolving Credit Facility, 18-Month Facility | Minimum                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate     0.80%          
Credit facilities | Delayed Draw Term Loan | Term Loan                
Debt Instrument [Line Items]                
Face amount         $ 5,000      
Credit facilities | Delayed Draw Term Loan Credit Facility, 364-Day Facility | Term Loan                
Debt Instrument [Line Items]                
Face amount         $ 2,000      
Debt term         364 days      
Credit facilities | Delayed Draw Term Loan Credit Facility, 364-Day Facility | Term Loan | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate         0.75%      
Credit facilities | Delayed Draw Term Loan Credit Facility, Two-Year Facility                
Debt Instrument [Line Items]                
Face amount         $ 2,000      
Credit facilities | Delayed Draw Term Loan Credit Facility, Two-Year Facility | Term Loan                
Debt Instrument [Line Items]                
Debt term         2 years      
Amount outstanding           $ 290    
Credit facilities | Delayed Draw Term Loan Credit Facility, Two-Year Facility | Term Loan | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate         0.88%      
Credit facilities | Delayed Draw Term Loan Credit Facility, Three-Year Facility                
Debt Instrument [Line Items]                
Face amount         $ 1,000      
Credit facilities | Delayed Draw Term Loan Credit Facility, Three-Year Facility | Term Loan                
Debt Instrument [Line Items]                
Debt term         3 years      
Credit facilities | Term Loan                
Debt Instrument [Line Items]                
Face amount         $ 3,000      
Credit facilities | Term Loan | June 17, 2022 Revolving Credit Facility, Five-Year Term                
Debt Instrument [Line Items]                
Debt term     5 years          
Credit facilities | Term Loan | June 17, 2022 Revolving Credit Facility, 18-Month Facility                
Debt Instrument [Line Items]                
Debt term     18 years          
Credit facilities | Term Loan | Delayed Draw Term Loan Credit Facility, Three-Year Facility | Secured Overnight Financing Rate                
Debt Instrument [Line Items]                
Debt instrument, basis spread on variable rate         1.05%