Annual report pursuant to Section 13 and 15(d)

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

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SHAREOWNERS' EQUITY - Activity in Accumulated Other Comprehensive Income (Loss) (Phantom) (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Foreign currency translation gain (loss)      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Aggregate adjustment for the period, tax effect $ 37 $ (161) $ 32
Unrealized gain (loss) on marketable securities, net of tax      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Current period changes in fair value, tax effect (1) (1) 0
Reclassification to earnings, tax effect 1 1 0
Unrealized gain (loss) on cash flow hedges, net of tax      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Current period changes in fair value, tax effect 135 (190) 75
Reclassification to earnings, tax effect 18 (3) (142)
Unrecognized pension and postretirement benefit costs, net of tax      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Reclassification to earnings, tax effect 439 269 1,040
Net actuarial gain (loss) and prior service cost resulting from remeasurements of plan assets and liabilities, tax effect $ (355) $ (180) $ (1,460)