Annual report pursuant to Section 13 and 15(d)

SHAREOWNERS' EQUITY - Activity in Accumulated Other Comprehensive Income (Loss) (Detail)

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SHAREOWNERS' EQUITY - Activity in Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year $ (3,103) $ (2,635)  
Aggregate adjustment for the year (net of tax effect of $(9), $11 and $(34)) 294 (92) (105)
Current period changes in fair value (net of tax effect of $4, $11 and $17) 0 (6) 39
Current period changes in fair value (net of tax effect of $(25), $(16) and $(4)) (82) 35 (39)
Balance at end of period (3,354) (3,103) (2,635)
Foreign currency translation gain (loss)
      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year (160) (68) 37
Aggregate adjustment for the year (net of tax effect of $(9), $11 and $(34)) 294 (92) (105)
Balance at end of period 134 (160) (68)
Unrealized gain (loss) on marketable securities, net of tax
      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year 6 12 (27)
Current period changes in fair value (net of tax effect of $4, $11 and $17) 6 18 30
Reclassification to earnings (net of tax effect of $(3), $(14) and $6) (6) (24) 9
Balance at end of period 6 6 12
Unrealized gain (loss) on cash flow hedges, net of tax
      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year (204) (239) (200)
Current period changes in fair value (net of tax effect of $(25), $(16) and $(4)) (43) (26) (7)
Reclassification to earnings (net of tax effect of $(24), $37 and $(19)) (39) 61 (32)
Balance at end of period (286) (204) (239)
Unrecognized pension and postretirement benefit costs, net of tax
      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year (2,745) (2,340) (1,527)
Reclassification to earnings (net of tax effect of $1,876, $378 and $150) 3,135 628 245
Net actuarial gain (loss) and prior service cost resulting from remeasurements of plan assets and liabilities (net of tax effect of $(2,151), $(622) and $(633)) (3,598) (1,033) (1,058)
Balance at end of period $ (3,208) $ (2,745) $ (2,340)