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RESEARCH AND DEVELOPMENT EXPENDITURES
12 Months Ended
Dec. 31, 2019
RESEARCH AND DEVELOPMENT EXPENDITURES

15. RESEARCH AND DEVELOPMENT EXPENDITURES

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Research expenditures that relate to the development of new products and processes, including significant improvements and refinements to existing products, are expensed as incurred. Such costs were $190 million in 2019, $193 million in 2018 and $177 million in 2017. The Company did not participate in any material customer sponsored research during any of the years.

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