Managed Investment Entities (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Gains (losses) on change in fair value of assets/liabilities:
Assets	[1]	$ (1)	$ 33
Liabilities	[1]	(12)	(36)
Management fees paid to AFG		4	4
CLO earnings (losses) attributable to AFG shareholders	[2]	$ (7)	$ 3

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

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