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Consolidated Statements Of Income (Parenthetical) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Dec. 31, 2011
Jan. 01, 2011
Dec. 31, 2011
Jan. 01, 2011
Consolidated Statements Of Income [Abstract]        
Income (loss) from discontinued operations, tax expense (benefit) $ (70) $ (199) $ (132) $ (174)
Gain on sale of discontinued operations, tax expense $ 169 $ 396 $ 339 $ 562