Clearing Organizations - Assets Pledged by Clearing Members (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Original Margin | ICE Clear Europe
Clearing Organizations [Line Items]
Government securities at face value	$ 24,235	$ 23,496
Letters of credit	0	0
ICE NGX cash deposits	0	0
Total	24,235	23,496
Original Margin | ICE Clear Credit
Clearing Organizations [Line Items]
Government securities at face value	11,568	5,699
Letters of credit	0	0
ICE NGX cash deposits	0	0
Total	11,568	5,699
Original Margin | ICE Clear US
Clearing Organizations [Line Items]
Government securities at face value	8,607	9,581
Letters of credit	0	0
ICE NGX cash deposits	0	0
Total	8,607	9,581
Original Margin | ICE NGX
Clearing Organizations [Line Items]
Government securities at face value	0	0
Letters of credit	1,610	1,663
ICE NGX cash deposits	281	233
Total	1,891	1,896
Original Margin | Other ICE Clearing Houses
Clearing Organizations [Line Items]
Government securities at face value	25	18
Letters of credit	0	0
ICE NGX cash deposits	0	0
Total	25	18
Guaranty Fund | ICE Clear Europe
Clearing Organizations [Line Items]
Total Guaranty Fund	431	323
Guaranty Fund | ICE Clear Credit
Clearing Organizations [Line Items]
Total Guaranty Fund	169	176
Guaranty Fund | ICE Clear US
Clearing Organizations [Line Items]
Total Guaranty Fund	234	169
Guaranty Fund | ICE NGX
Clearing Organizations [Line Items]
Total Guaranty Fund	0	0
Guaranty Fund | Other ICE Clearing Houses
Clearing Organizations [Line Items]
Total Guaranty Fund	$ 3	$ 2