Condensed Financial Information of Parent Company - Condensed Balance Sheet (Details) - USD ($) $ in Millions		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets:
Cash and cash equivalents		$ 2,107	$ 1,220	$ 1,343	$ 1,639
Other investments		1,034	750
Total assets		55,072	49,837	47,513
Liabilities and Equity:
Long-term debt		1,283	998
Shareholders’ equity		4,916	4,592
Total liabilities and equity		55,072	49,837
AFG
Assets:
Cash and cash equivalents		197	189	$ 292	$ 523
Investment in securities		63	63
Investment in subsidiaries	[1]	5,989	5,439
Other investments		2	2
Other assets		136	84
Total assets		6,387	5,777
Liabilities and Equity:
Long-term debt		1,283	986
Other liabilities		188	199
Shareholders’ equity		4,916	4,592
Total liabilities and equity		$ 6,387	$ 5,777

[1] Investment in subsidiaries includes intercompany receivables and payables.