Clearing Organizations - Assets Pledged by Clearing Members (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
ICE Clear Europe | Original Margin
Original margin:
Government securities at face value	$ 23,496	$ 22,961
Letters of credit	0	0
NGX cash deposits	0	0
Other	0	0
Total	23,496	22,961
ICE Clear Europe | Guaranty Fund
Guaranty fund:
Government securities at face value	323	217
ICE Clear Credit | Original Margin
Original margin:
Government securities at face value	5,699	6,013
Letters of credit	0	0
NGX cash deposits	0	0
Other	0	0
Total	5,699	6,013
ICE Clear Credit | Guaranty Fund
Guaranty fund:
Government securities at face value	176	178
ICE Clear U.S. | Original Margin
Original margin:
Government securities at face value	9,581	10,542
Letters of credit	0	0
NGX cash deposits	0	0
Other	0	0
Total	9,581	10,542
ICE Clear U.S. | Guaranty Fund
Guaranty fund:
Government securities at face value	169	147
NGX | Original Margin
Original margin:
Government securities at face value	0
Letters of credit	1,663
NGX cash deposits	233
Other	0
Total	1,896
NGX | Guaranty Fund
Guaranty fund:
Government securities at face value	0
Other ICE Clearing Houses | Original Margin
Original margin:
Government securities at face value	18	37
Letters of credit	0	0
NGX cash deposits	0	0
Other	0	368
Total	18	405
Other ICE Clearing Houses | Guaranty Fund
Guaranty fund:
Government securities at face value	$ 2	$ 40