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, 2016
Dec. 31, 2015
Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year $ (3,540) $ (3,594)  
Translation adjustment (net of tax effect of $32, $0, and $105) (119) (440) $ (331)
Current period changes in fair value (net of tax effect of $0, $(1), and $1) 0 (1) 1
Current period changes in fair value (net of tax effect of $75, $103, and $133) (112) 6 280
Balance at end of period (4,483) (3,540) (3,594)
Foreign currency translation gain (loss)      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year (897) (457) (126)
Translation adjustment (net of tax effect of $32, $0, and $105) (119) (440) (331)
Balance at end of period (1,016) (897) (457)
Unrealized gain (loss) on marketable securities, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year (1) 0 (1)
Current period changes in fair value (net of tax effect of $0, $(1), and $1) 0 (1) 2
Reclassification to earnings (no tax impact in any period) 0 0 (1)
Balance at end of period (1) (1) 0
Unrealized gain (loss) on cash flow hedges, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year 67 61 (219)
Current period changes in fair value (net of tax effect of $75, $103, and $133) 124 171 220
Reclassification to earnings (net of tax effect of $(142), $(99), and $35) (236) (165) 60
Balance at end of period (45) 67 61
Unrecognized pension and postretirement benefit costs, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year (2,709) (3,198) (114)
Reclassification to earnings (net of tax effect of $1,040, $97, and $870) 1,783 195 1,462
Net actuarial gain (loss) and prior service cost resulting from remeasurements of plan assets and liabilities (net of tax effect of $(1,460), $197, and $(2,714)) (2,495) 294 (4,546)
Balance at end of period (3,421) (2,709) (3,198)
Net Income [Member] [Member] | Unrealized gain (loss) on marketable securities, net of tax      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Reclassification to earnings (no tax impact in any period) 0 0 1
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 $(142), $(99), and $35) 236 165 (60)
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 $1,040, $97, and $870) $ (1,783) $ (195) $ (1,462)