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Financing Arrangements - Commercial Paper (Details) - Commercial paper - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Long-term debt        
Maximum aggregate principal amount $ 1,000   $ 1,000  
Average amount of commercial paper outstanding     $ 468 $ 425
Weighted average interest rate (as a percent)     5.13% 0.74%
Weighted average maturity     10 days 19 days
Commercial paper outstanding $ 390 $ 390 $ 390  
Basis spread 5.38% 4.75%    
Weighted average maturity of outstanding balance 15 days 7 days