Schedule IV - Reinsurance (Tables)

12 Months Ended

Dec. 31, 2017

Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]

Supplemental Schedule Of Reinsurance Premiums For Insurance Companies [Table Text Block]

									Percentage
			Ceded to		Assumed				of amount
	Gross		other		from other		Net		assumed
(in millions)	amount		companies		companies		amount		to net
Year Ended December 31, 2017
Life insurance in force	$	1,105,323	$	49,172	$	2,478	$	1,058,629	0.2%
Premiums
Life insurance and annuities	$	2,307	$	233	$	22	$	2,096	1.0%
Accident and health insurance		30,095		191		307		30,211	1.0%
Total	$	32,402	$	424	$	329	$	32,307	1.0%
Year Ended December 31, 2016
Life insurance in force	$	1,047,002	$	55,399	$	2,827	$	994,430	0.3%
Premiums
Life insurance and annuities	$	2,881	$	310	$	22	$	2,593	0.8%
Accident and health insurance		27,874		203		362		28,033	1.3%
Total	$	30,755	$	513	$	384	$	30,626	1.3%
Year Ended December 31, 2015
Life insurance in force	$	1,047,982	$	72,208	$	3,273	$	979,047	0.3%
Premiums
Life insurance and annuities	$	2,886	$	335	$	106	$	2,657	4.0%
Accident and health insurance		26,926		235		294		26,985	1.1%
Total	$	29,812	$	570	$	400	$	29,642	1.3%