Supplemental Financial Information - Additional Information (Details) $ in Millions |
3 Months Ended | 6 Months Ended |
|---|---|---|
|
Jun. 30, 2018
USD ($)
shares
|
Jun. 30, 2018
USD ($)
Reportable_Segments
shares
|
|
| Supplemental Financial Information [Line Items] | ||
| Number of reportable segments | Reportable_Segments | 2 | |
| Treasury shares issued related to stock compensation | shares | 2,135,405 | 9,028,819 |
| 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 | 36 | 36 |
| Estimated restructuring charges primarily severance and benefits cost | $ 40 | $ 40 |