Supplementary Disclosure of Consolidated Cash Flow Information - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash paid during the period for:
Interest	$ 354	$ 362
Taxes	68	39
Non-cash investing/financing activities:
Interest credited to policyholder contract deposits included in financing activities	$ 824	913
Aer Cap
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Non-cash consideration received from sale		$ 0