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Debt and Other Financing Arrangements - Short Term Debt (Details) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
Maturities classified as current $ 4 $ 4
Short-term borrowings 157 179
Bank overdrafts 61 2
Total short-term debt $ 222 $ 185