Quarterly report pursuant to Section 13 or 15(d)

Comprehensive Income (Detail)

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Comprehensive Income (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jul. 02, 2011
Jun. 30, 2012
Jul. 02, 2011
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]          
Accumulated net unrealized holding gain (loss) on available-for-sale investments $ 288   $ 288   $ 231
Accumulated net deferred tax asset valuation allowance 104   104   104
Accumulated net unrealized holding gain (loss) on derivatives (55)   (55)   8
Accumulated net prior service costs (30)   (30)   (32)
Accumulated net actuarial losses (920)   (920)   (950)
Accumulated net foreign currency translation adjustment (244)   (244)   (142)
Total accumulated other comprehensive income (loss) (857)   (857)   (781)
Components Of Total Comprehensive Income (Loss) [Abstract]          
Change in net unrealized holding gain (loss) on available-for-sale investments (109) (36) 57 (41)  
Change in net deferred tax asset valuation allowance 0 1 0 (14)  
Change in net unrealized holding gain (loss) on derivatives (29) (7) (63) 105  
Change in net prior service costs 1 0 2 0  
Change in net actuarial losses 14 (6) 30 (13)  
Change in net foreign currency translation adjustment (130) 33 (102) 96  
Other comprehensive income (loss) $ (253) $ (15) $ (76) $ 133