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SHAREHOLDERS' EQUITY (Tables) | 6 Months Ended
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Jun. 30, 2019
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | Components of accumulated other comprehensive loss, net of tax (in millions):
| June 30, 2019 |  | December 31, 2018
Related to marketable securities | $ | 11 |  |  | $ | (11 | )
Related to employee benefit plans | (428 | ) |  | (440 | )
Related to interest rate derivatives | (5 | ) |  | 3 |
Total | $ | (422 | ) |  | $ | (448 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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