Employee Benefit Plans Level 4 Investment and Savings Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan Non Elective Contribution Percent	2.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	6.00%
Earning of Employees Below and Above Limit	$ 1
Cost to Company Related to Investment and Saving Plan	0	$ 0	$ 123
Assets	228,348	$ 245,013
Separate Accounts [Member] | Hartford Life Insurance Company [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Assets	$ 376