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
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year $ (3,594) $ (460)  
Translation adjustment (net of tax effect of $0, $105, and $(5)) (440) (331) $ (260)
Current period changes in fair value (net of tax effect of $(1), $1, and $(3)) (1) 1 (7)
Current period changes in fair value (net of tax effect of $103, $133, and $1) 6 280 67
Balance at end of period (3,540) (3,594) (460)
Foreign currency translation gain (loss)      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax 0    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year (457) (126) 134
Translation adjustment (net of tax effect of $0, $105, and $(5)) (440) (331) (99)
Reclassification to earnings (net of tax effect of $0, $0, and $(2))   0 (161)
Balance at end of period (897) (457) (126)
Unrealized gain (loss) on marketable securities, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year 0 (1) 6
Current period changes in fair value (net of tax effect of $(1), $1, and $(3)) (1) 2 (4)
Reclassification to earnings (net of tax effect of $0, $0, and $(2)) 0 (1) (3)
Balance at end of period (1) 0 (1)
Unrealized gain (loss) on cash flow hedges, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year 61 (219) (286)
Current period changes in fair value (net of tax effect of $103, $133, and $1) 171 220 1
Reclassification to earnings (net of tax effect of $(99), $35, and $39) (165) 60 66
Balance at end of period 67 61 (219)
Unrecognized pension and postretirement benefit costs, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year (3,198) (114) (3,208)
Reclassification to earnings (net of tax effect of $97, $870, and $67) 195 1,462 111
Net actuarial gain (loss) and prior service cost resulting from remeasurements of plan assets and liabilities (net of tax effect of $197, $(2,714), and $1,786) 294 (4,546) 2,983
Balance at end of period (2,709) (3,198) (114)
Net Income [Member] [Member] | Foreign currency translation gain (loss)      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax 0 0 161
Net Income [Member] [Member] | Unrealized gain (loss) on marketable securities, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Reclassification to earnings (net of tax effect of $0, $0, and $(2)) 0 1 3
Net Income [Member] [Member] | Unrealized gain (loss) on cash flow hedges, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Reclassification to earnings (net of tax effect of $(99), $35, and $39) 165 (60) (66)
Net Income [Member] [Member] | Unrecognized pension and postretirement benefit costs, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Reclassification to earnings (net of tax effect of $97, $870, and $67) $ (195) $ (1,462) $ (111)