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FAIR VALUE MEASUREMENTS (Fair Value, Assets and Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Fair Value, Assets Measured On Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |  |
Beginning balance | $ 118.1 | $ 174.6 | $ 91.4 | $ 49.5
Included in earnings | (6.5) | 139.0 | 83.1 | 341.8
Settlements | (38.8) | (123.0) | (101.7) | (200.7)
Ending balance - September 30 | 72.8 | 190.6 | 72.8 | 190.6
Total gains (losses) for the period included in earnings attributable to the change in unrealized gains on assets still held at the reporting date | (6.5) | 15.9 | 81.8 | 141.0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |  |  |
Beginning balance | 0.0 | (3.0) | 0.0 | (1.7)
Included in earnings | (34.4) | (3.1) | (39.7) | (7.4)
Settlements | 4.2 | 0.4 | 9.5 | 3.4
Ending balance - September 30 | (30.2) | (5.7) | (30.2) | (5.7)
Total losses for the period included in earnings attributable to the change in unrealized losses on liabilities still held at the reporting date | $ (30.2) | $ (2.7) | $ (30.2) | $ (5.7)

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- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + 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 unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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