Quarterly report pursuant to Section 13 or 15(d)

REVENUE RECOGNITION - Schedule of Contract Assets and Liabilities (Details)

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REVENUE RECOGNITION - Schedule of Contract Assets and Liabilities (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Contract Assets:    
Revenue related to in-transit packages $ 269 $ 237
Contract Liabilities:    
Short-term advance payments from customers 13 20
Long-term advance payments from customers $ 26 $ 25