|
Goodwill and Purchased Intangible Assets (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2014
|
Mar. 31, 2013
|
|
| Goodwill [Line Items] | ||
| Goodwill expected to be deductible in future periods | $ 861 | |
| Amortization expense for purchased finite-lived intangible assets | 18 | 13 |
| Non-cash intangible asset impairment charges | 10 | |
|
Customer relationships [Member]
|
||
| Goodwill [Line Items] | ||
| Non-cash intangible asset impairment charges | 7 | |
|
Trade Names [Member]
|
||
| Goodwill [Line Items] | ||
| Non-cash intangible asset impairment charges | 3 | |
|
eSpeed [Member]
|
||
| Goodwill [Line Items] | ||
| Goodwill expected to be deductible in future periods | 493 | |
|
TR Businesses [Member]
|
||
| Goodwill [Line Items] | ||
| Goodwill expected to be deductible in future periods | $ 294 | |