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Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Narrative) (Details)

v3.20.4
INCOME TAXES (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00% 21.00% Ìý
Deferred Tax Assets, Operating Loss Carryforwards, Domestic $ 7,444.0 $ 3,459.0 Ìý Ìý
Deferred Tax Assets, Operating Loss Carryforwards, Foreign 1,592.0 1,592.0 Ìý Ìý
Deferred Tax Assets, Valuation Allowance 836.0 441.0 $ 1,287.0 $ 1,983.0
Deferred Tax Asset, Interest Carryforward 55.0 Ìý Ìý Ìý
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Ìý Ìý 696.0 Ìý
Deferred Tax Assets, Tax Credit Carryforwards, Foreign 6.0 Ìý Ìý Ìý
Estimated Taxable Income to Fully Utilize Deferred Tax Assets 10.0 Ìý Ìý Ìý
Undistributed Earnings of Foreign Subsidiaries 0.0 0.0 Ìý Ìý
valuation allowance reversal [Member] Ìý Ìý Ìý Ìý
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount 0.0 0.0 (461.0) Ìý
Dissolution of entities [Member] Ìý Ìý Ìý Ìý
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount 0.0 (846.0) $ (162.0) Ìý
State and Local Jurisdiction [Member] Ìý Ìý Ìý Ìý
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Deferred Tax Assets, Valuation Allowance 98.0 38.0 Ìý Ìý
LUXEMBOURG Ìý Ìý Ìý Ìý
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Deferred Tax Assets, Valuation Allowance 397.0 397.0 Ìý Ìý
LUXEMBOURG | Dissolution of entities [Member] Ìý Ìý Ìý Ìý
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (1,300.0) Ìý Ìý Ìý
LUXEMBOURG | Tax Law Change [Member] Ìý Ìý Ìý Ìý
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Ìý $ 46.0 Ìý Ìý
Maximum [Member] | LUXEMBOURG Ìý Ìý Ìý Ìý
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Ìý 24.94% 26.01% Ìý
Intercompany notes [Member] | LUXEMBOURG Ìý Ìý Ìý Ìý
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ 447.0 Ìý Ìý Ìý