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INCOME TAXES - Summarized Activity Related to Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Tax |  |  |
Reconciliation of Unrecognized Tax Benefits [Roll Forward] |  |  |
Beginning Balance | $ 167 | $ 160 | $ 144
Additions for tax positions of the current year | 6 | 47 | 16
Additions for tax positions of prior years | 51 | 7 | 33
Reductions for tax positions of prior years for: |  |  |
Changes based on facts and circumstances | (45) | (43) | (24)
Settlements during the period | (3) | (1) | (6)
Lapses of applicable statute of limitations | (4) | (3) | (3)
Ending Balance | 172 | 167 | 160
Interest |  |  |
Reconciliation of Unrecognized Tax Benefits [Roll Forward] |  |  |
Beginning Balance | 44 | 43 | 50
Additions for tax positions of the current year | 0 | 0 | 0
Additions for tax positions of prior years | 13 | 10 | 14
Reductions for tax positions of prior years for: |  |  |
Changes based on facts and circumstances | (4) | (8) | (18)
Settlements during the period | (1) | (1) | (3)
Lapses of applicable statute of limitations | 0 | 0 | 0
Ending Balance | 52 | 44 | 43
Penalties |  |  |
Reconciliation of Unrecognized Tax Benefits [Roll Forward] |  |  |
Beginning Balance | 5 | 9 | 6
Additions for tax positions of the current year | 0 | 1 | 0
Additions for tax positions of prior years | 0 | 0 | 3
Reductions for tax positions of prior years for: |  |  |
Changes based on facts and circumstances | (1) | (5) | 0
Settlements during the period | 0 | 0 | 0
Lapses of applicable statute of limitations | 0 | 0 | 0
Ending Balance | $ 4 | $ 5 | $ 9

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- Definition Unrecognized Tax Benefits Reductions Resulting From Changes Based On Facts And Circumstances + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=116821951&loc=SL37586934-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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