| Component: (Network and Table) | |
|---|---|
| Network | 2406406 - Disclosure - Long-Lived Assets 5 (Details) (http://www.ca.com/role/LongLivedAssets5Details) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000356028 (http://www.sec.gov/CIK) |
| Long-Lived Assets [Abstract] | Period [Axis] | |
|---|---|---|
2012-04-01 - 2013-03-31 | 2011-04-01 - 2012-03-31 | |
Long-Lived Assets [Abstract] | ||
Goodwill activity | ||
Balance at beginning of year | 5,856,000,000 | 5,686,000,000 |
Amounts allocated to loss on discontinued operations | 0 | (7,000,000) |
Acquisitions | 17,000,000 | 179,000,000 |
Foreign currency translation adjustment | (2,000,000) | (2,000,000) |
Balance at end of year | 5,871,000,000 | 5,856,000,000 |