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Commitments and Contingent Liabilities - Summary of Asbestos Claims Activity (Details) - Asbestos Related Product Liability $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) claim | Dec. 31, 2018 USD ($) claim
Number of claims filed |  |
Pending claims, beginning of period | 43,100 | 54,300
New claims filed | 800 | 1,300
Claims settled/dismissed | (3,800) | (12,500)
Pending claims, end of period | 40,100 | 43,100
Payments | $ | $ 11 | $ 13

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