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Clearing Operations (Narrative) (Details) (USD $)
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3 Months Ended | 3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2014
contract
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Dec. 31, 2013
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Mar. 31, 2013
contract
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Mar. 31, 2014
NASDAQ OMX Nordic [Member]
contract
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Mar. 31, 2013
NASDAQ OMX Nordic [Member]
contract
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Mar. 31, 2014
Liability Waterfall [Member]
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Mar. 31, 2014
NOS Clearing [Member]
contract
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| Clearing Operations [Line Items] | |||||||||||
| Financial investments, at fair value | $ 197,000,000 | [1] | $ 189,000,000 | [1] | $ 129,000,000 | ||||||
| Credit facility, borrowing capacity | 93,000,000 | ||||||||||
| Contract value of resale and repurchase agreements | 3,900,000,000 | 4,700,000,000 | |||||||||
| Total number of derivative contracts cleared | 1,209,945 | 1,190,292 | 294,178 | ||||||||
| Power of assessment of the clearing member's contribution to the financial markets and commodities markets default funds | 100.00% | ||||||||||
| Junior capital, cash deposits and pledged assets | 22,000,000 | ||||||||||
| Senior capital, cash deposits and pledged assets | 23,000,000 | ||||||||||
| Market value of derivative contracts outstanding, prior to netting | 2,926,000,000 | 81,000,000 | |||||||||
| Total number of derivative contracts cleared through NOS Clearing | 25,179,779 | 27,882,196 | |||||||||
| Restricted cash | 84,000,000 | 84,000,000 | |||||||||
| Default Fund Contributions | 392,000,000 | 43,000,000 | |||||||||
| Pledged default fund contributions and margin collateral | $ 594,000,000 | ||||||||||
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