Managed Investment Entities (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Gains (losses) on change in fair value of assets/liabilities:
Assets	[1]	$ 48	$ (7)	$ 47	$ 26
Liabilities	[1]	(37)	5	(49)	(31)
Management fees paid to AFG		4	3	8	7
CLO earnings (losses) attributable to AFG shareholders	[2]	$ 19	$ 5	$ 12	$ 8

[1] Included in revenues in AFG’s Statement of Earnings.

[2] Included in earnings before income taxes in AFG’s Statement of Earnings.