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RESEARCH AND DEVELOPMENT COSTS (Tables)
 12 Months Ended
Dec. 31, 2020
Research and Development [Abstract]  
Schedule of research and development costs
The following table presents the Company’s gross and net expenditures on R&D activities:
 Year Ended December 31,
(in millions)202020192018
Gross R&D expenditures$533 $498 $512 
Customer reimbursements(57)(85)(72)
Net R&D expenditures$476 $413 $440