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, 2019
Dec. 31, 2018
Dec. 31, 2017
Foreign currency translation gain (loss)      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Aggregate adjustment for the period, tax effect $ 10 $ 37 $ (161)
Unrealized gain (loss) on marketable securities, net of tax      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Current period changes in fair value, tax effect 4 (1) (1)
Reclassification to earnings, tax effect (1) 1 1
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 61 135 (190)
Reclassification to earnings, tax effect (39) 18 3
Unrecognized pension and postretirement benefit costs, net of tax      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Reclassification to earnings, tax effect 626 439 269
Net actuarial gain (loss) and prior service cost resulting from remeasurements of plan assets and liabilities, tax effect $ (979) $ (355) $ (180)