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RETIREMENT AND POSTRETIREMENT BENEFIT PLANS - NARRATIVE (Details) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Aug. 08, 2019 USD ($) | Aug. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) employee | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Defined Benefit Plan Disclosure |  |  |  |  |
Decrease to benefit obligation |  | $ 178 |  |  |
Accrued liabilities for the supplemental retirement plan |  |  | $ 279 | $ 201 |
Expenses under provisions of defined contribution and supplemental retirement plans |  |  | 211 | 152 | $ 130
Total benefit costs, including postretirement costs |  |  | $ 220 | 182 | $ 181
United States |  |  |  |  |
Defined Benefit Plan Disclosure |  |  |  |  |
Number of employees accruing benefits under defined benefit plans | employee |  |  | 4,000 |  |
Foreign |  |  |  |  |
Defined Benefit Plan Disclosure |  |  |  |  |
Number of employees accruing benefits under defined benefit plans | employee |  |  | 600 |  |
Pension Benefits |  |  |  |  |
Defined Benefit Plan Disclosure |  |  |  |  |
Additions due to the Acquisition | $ 193 |  | $ 2,136 | 0 |
Decrease to benefit obligation |  |  | $ 0 | $ 0 |

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- Definition This element represents the number of employees currently accruing benefits under defined benefit plans. + References No definition available. + Details
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- Definition This element represents the accrued liabilities for supplemental retirement benefit plan which provides restoration of benefit lost due to government limitations on qualified retirement benefits. + References No definition available. + Details
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- Definition Amount of increase in benefit obligation of defined benefit plan from business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(8) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(7) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Amount of cost (reversal of cost) for other postretirement benefits. Excludes pension benefits. + References No definition available. + Details
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- Details
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- Details
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- Details
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