Supplementary Disclosure of Consolidated Cash Flow Information - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash paid during the period for:
Interest	$ 1,046	$ 1,009
Taxes	490	208
Non-cash investing/financing activities:
Interest credited to policyholder contract deposits included in financing activities	$ 2,494	$ 2,691