Stock Compensation - Schedule of Stock Based Compensation Costs (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Related tax benefit	$ 1	$ 1
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock compensation expense	2	3
Phantom Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock compensation expense	3	4
Management Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock compensation expense	0	0
Management Incentive Plan [Member] | Phantom Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock compensation expense	0	0
FGL Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock compensation expense	3	4
FGL Incentive Plan [Member] | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock compensation expense	2	3
FGL Incentive Plan [Member] | Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock compensation expense	$ 1	$ 1