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Borrowings - Narrative (Details) - USD ($)
Mar. 31, 2023
Jan. 31, 2024
Commercial Paper    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity under credit facility   $ 6,000,000,000
Revolving Credit Facility    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity under credit facility   5,000,000,000
Revolving Credit Facility | 364-Day Revolving Credit Facility    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity under credit facility $ 1,000,000,000  
Revolving credit facility, term 364 days  
Credit Facilities    
Line of Credit Facility [Line Items]    
Available borrowing resources   $ 1,000,000,000