|
Basis of Presentation (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
Jun. 26, 2011
|
Dec. 31, 2010
|
Jun. 27, 2010
|
Dec. 31, 2009
|
Dec. 31, 2010
Change in Accounting Principle [Member]
|
Dec. 31, 2009
Change in Accounting Principle [Member]
|
Dec. 31, 2010
Change in Accounting Principle [Member]
Retained Earnings [Member]
|
Dec. 31, 2009
Change in Accounting Principle [Member]
Retained Earnings [Member]
|
Dec. 31, 2010
Scenario, Previously Reported [Member]
|
Dec. 31, 2009
Scenario, Previously Reported [Member]
|
Dec. 31, 2010
Scenario, Previously Reported [Member]
Common Stock [Member]
|
Dec. 31, 2009
Scenario, Previously Reported [Member]
Common Stock [Member]
|
Dec. 31, 2010
Scenario, Previously Reported [Member]
Retained Earnings [Member]
|
Dec. 31, 2009
Scenario, Previously Reported [Member]
Retained Earnings [Member]
|
Dec. 31, 2010
Scenario, Previously Reported [Member]
Accumulated Other Comprehensive Loss [Member]
|
Dec. 31, 2009
Scenario, Previously Reported [Member]
Accumulated Other Comprehensive Loss [Member]
|
Jun. 26, 2011
Common Stock [Member]
|
Dec. 31, 2010
Common Stock [Member]
|
Jun. 27, 2010
Common Stock [Member]
|
Dec. 31, 2009
Common Stock [Member]
|
Jun. 26, 2011
Retained Earnings [Member]
|
Dec. 31, 2010
Retained Earnings [Member]
|
Jun. 27, 2010
Retained Earnings [Member]
|
Dec. 31, 2009
Retained Earnings [Member]
|
Jun. 26, 2011
Accumulated Other Comprehensive Loss [Member]
|
Dec. 31, 2010
Accumulated Other Comprehensive Loss [Member]
|
Jun. 27, 2010
Accumulated Other Comprehensive Loss [Member]
|
Dec. 31, 2009
Accumulated Other Comprehensive Loss [Member]
|
Dec. 31, 2011
U.S. Government [Member]
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Percentage of net sales recognized using the percentage-of-completion method | 95.00% | ||||||||||||||||||||||||||||
| Reduction in retained earnings due to cumulative effect of change in accounting principle | $ 3,288 | $ 3,497 | $ 3,787 | $ 3,966 | $ 211 | $ 163 | $ 211 | $ 163 | $ 3,708 | $ 4,129 | $ 346 | $ 373 | $ 12,372 | $ 12,351 | $ (9,010) | $ (8,595) | $ 333 | $ 346 | $ 360 | $ 373 | $ 11,626 | $ 12,161 | $ 11,810 | $ 12,188 | $ (8,671) | $ (9,010) | $ (8,383) | $ (8,595) |