Shareholders' Equity - Share-based Compensation, Awards, Unrecognized Compensation (Details) $ in Millions |
12 Months Ended |
---|---|
Dec. 31, 2019
USD ($)
| |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Unrecognized Compensation | $ 16 |
Restricted Stock Units (RSUs) [Member] | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Unrecognized Compensation | $ 15 |
Awards Compensation Costs Remaining Weighted Average Vesting Term, (Years) | 1 year 10 months 24 days |
Performance Shares [Member] | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Unrecognized Compensation | $ 1 |
Awards Compensation Costs Remaining Weighted Average Vesting Term, (Years) | 1 year |