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INCOME TAXES - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Taxes [Line Items] |  |  |  |  |  |
Effective income tax rate |  |  |  | 21.40% | 20.40% | 31.30%
Provisional benefit from Jobs Act 2017 |  |  | $ 272 |  |  | $ 272
Loss on mark to market of defined benefit plan, tax benefit | $ 571 | $ 390 | 193 |  |  |
Loss on mark to market of defined benefit plan | 2,387 | 1,627 | 800 |  |  |
Decrease to foreign deferred tax asset |  |  |  |  |  | 14
Transformation cost |  |  |  | $ 255 | $ 360 |
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Amount |  |  |  | 59 | 87 |
Legal contingencies | 97 |  |  | 97 |  |
Benefit related to legal expenses | 6 |  |  | 6 |  |
Operating lease carryforward |  | 68 |  |  | 68 |
Tax benefit from share-based compensation |  |  |  |  | $ 38 |
Reduction of effective tax rate due to share-based compensation benefits |  |  |  |  | 0.60% |
Deferred tax expense |  |  |  | 100 | $ 758 | 1,224
Income tax benefit |  |  |  | (1,212) | (1,228) | (2,232)
Income tax holiday, decrease of non-U.S. tax expense |  |  |  | $ 27 | $ 27 | $ 24
Income tax holiday, per share impact (usd per share) |  |  |  | $ 0.03 | $ 0.03 | $ 0.03
Change in valuation allowance |  |  |  | $ 58 | $ 14 | $ 33
Tax credit carryforward | 3 |  |  | 3 |  |
Undistributed earnings of foreign subsidiaries | 6,060 |  |  | 6,060 |  |
Indefinitely reinvested undistributed earnings of foreign subsidiaries | 1,597 |  |  | 1,597 |  |
Gross unrecognized tax benefits that would impact effective tax rate, if recognized | 171 | $ 165 | $ 159 | 171 | $ 165 | 159
Federal |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |
Operating loss carryforwards | 21 |  |  | 21 |  |
Operating loss set to expire in 2021 | 20 |  |  | 20 |  |
non U.S |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |
Operating loss carryforwards | $ 670 |  |  | $ 670 |  |
Adjustments |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |
Effective income tax rate |  |  |  |  | 1.00% |
Income tax benefit |  |  |  |  |  | $ 71

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