Post-Employment Benefits - Weighted-Average Assumptions Used in Determining Benefit Obligation at Measurement Date (Details) |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Defined benefit plans | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Discount rate | 3.00% | 4.00% |
| Rate of compensation increases | 4.60% | 4.60% |
| Other post-employment plans | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Discount rate | 3.60% | 4.60% |