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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Details) | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) | May 31, 2019 EUR (€) | May 31, 2017 EUR (€)
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Derivative, notional amount | $ 0 | $ 0 |  |  |
Derivative, fair value, terminated | 0 | 0 |  |  |
Derivative, net investment terminated | 0 | $ 0 |  |  |
Deferred, net after-tax gains on derivative instruments | 9,000,000 |  |  |  |
Undesignated derivative instruments |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Derivative, notional amount | 904,000,000 |  | $ 1,000,000,000.0 |  |
1.30% Senior Notes due May 2025 |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Senior notes | € |  |  |  |  | € 600,000,000
0.4% Senior Notes Due in May 2024 |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Senior notes | € |  |  |  | € 750,000,000 |
1.3% Senior Notes Due in May 2029 |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Senior notes | € |  |  |  | € 750,000,000 |
Net investment hedge |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Accumulated pre-tax unrealized translation gain in AOCI | 162,000,000 |  |  |  |
Foreign exchange contracts |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Derivative, notional amount | $ 357,000,000 |  | 345,000,000 |  |
Maximum length of time hedge in cash flow hedge | 12 months |  |  |  |
Interest rate swap |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Derivative, fair value, net | $ 0 |  | 0 |  |
Interest rate contracts |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Derivative, fair value, net | $ 0 |  | $ 0 |  |

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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