Stock-Based Incentive Plans Schedule of Grants by Type (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	102,000
Share-based Compensation Arrangement by Share-based Payment Award, Total Grants During the Period	1,032,000,000	1,368,000,000
Share-based Compensation Arrangement by Share-based Payment Award, All Grants, Fair Value	$ 1,974,000	$ 2,930,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	930,000
Share-based Compensation Arrangment by Share-based Payment Award, Options, Granted, Fair Value	$ 1,588,000
Time Based Vesting Conditions [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	930,000,000	1,368,000,000
Share-based Compensation Arrangment by Share-based Payment Award, Options, Granted, Fair Value	$ 1,588,000	$ 2,930,000
Performance Based Vesting Conditions [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	102,000,000	0
Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Awards, Granted, Fair Value	$ 386,000	$ 0