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Financing Arrangements - Commercial Paper (Details) - Commercial paper - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Long-term debt        
Maximum aggregate principal amount $ 1,000   $ 1,000  
Average amount of commercial paper outstanding     $ 438 $ 489
Weighted average interest rate (as a percent)     5.25% 1.50%
Weighted average maturity     11 days 18 days
Commercial paper outstanding $ 333 $ 390 $ 333  
Basis spread 5.52% 4.75%    
Weighted average maturity of outstanding balance 14 days 7 days