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Supplemental Financial Information - Additional Information (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 USD ($) shares | Sep. 30, 2018 USD ($) Reportable_Segments shares
Supplemental Financial Information [Line Items] |  |
Number of reportable segments | Reportable_Segments |  | 2
Treasury shares issued related to stock compensation | shares | 1,279,482 | 10,308,301
Product Line Reorganization |  |
Supplemental Financial Information [Line Items] |  |
Restructuring charges, cumulative basis | $ 21 | $ 21
Product Line Reorganization | Employee Severance |  |
Supplemental Financial Information [Line Items] |  |
Payments for restructuring | 18 | 18
Manufacturing Facility in Greenock, Scotland |  |
Supplemental Financial Information [Line Items] |  |
Restructuring charges, cumulative basis | 37 | 37
Estimated restructuring charges primarily severance and benefits cost | $ 40 | $ 40

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