Guaranteed Benefit Features (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Guaranteed Benefit Features [Abstract]
Percent of permanent life insurance in force	37.00%		37.00%		37.00%
Percent of permanent life insurance sales	37.00%	29.00%	33.00%	29.00%