|
Summary of Significant Accounting Policies Change in Accounting Principle (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
|
Jun. 29, 2012
|
Jul. 01, 2011
|
Jun. 29, 2012
|
Jul. 01, 2011
|
Dec. 31, 2011
|
|
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||||
| Cumulative effect adjustment on retained earnings from change in accounting methodology as of January 1, 2011 | $ 59 | ||||
| Impact on income before income taxes from a change in accounting methodology | $ 1 | $ 5 | $ 2 | $ 10 | |
| X | ||||||||||
|
- Definition
Amount of the cumulative effect on retained earnings net of related income tax effect. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the effect of a change in accounting principle on income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|