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Financing Arrangements - Narrative (Details) - Commercial paper - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Long-term debt      
Maximum aggregate principal amount $ 1,000    
Average amount of commercial paper outstanding $ 41 $ 438  
Weighted average interest rate 5.51% 5.25%  
Weighted average maturity 8 days 11 days  
Short-term borrowings $ 0   $ 327
Basis spread     5.50%
Weighted average maturity of outstanding balance     11 days