Supplementary Disclosure of Consolidated Cash Flow Information - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash paid during the period for:
Interest	$ 682	$ 650
Taxes	402	117
Non-cash investing/financing activities:
Interest credited to policyholder contract deposits included in financing activities	$ 1,654	1,797
Aer Cap
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Non-cash consideration received from sale		$ 0