INCOME TAXES	9 Months Ended
INCOME TAXES	Sep. 30, 2019
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES For interim financial statement purposes, U.S. GAAP income tax expense/benefit related to ordinary income is determined by applying an estimated annual effective income tax rate against a company's ordinary income, subject to certain limitations on the benefit of losses. Income tax expense/benefit related to items not characterized as ordinary income is recognized as a discrete item when incurred. The estimation of the Company's income tax provision requires the use of management forecasts and other estimates, application of statutory income tax rates, and an evaluation of valuation allowances. The Company's estimated annual effective income tax rate may be revised, if necessary, in each interim period. Benefit from income taxes for the nine months ended September 30, 2019 was $101 million and included: (i) $46 million of net income tax benefit for discrete items, which includes: (a) a $32 million tax benefit recognized upon a ruling from the Polish tax authorities confirming the deductibility of royalty payments by an affiliate, (b) $13 million in tax benefits associated with the filing of certain tax returns and (c) $1 million of net tax charges related to other changes in uncertain tax positions and (ii) $55 million of income tax benefit for the Company's ordinary loss during the nine months ended September 30, 2019. Provision for income taxes for the nine months ended September 30, 2018 was $74 million and included: (i) $203 million of net income tax expense for discrete items, which includes: (a) $255 million of tax charges related to internal restructurings and (b) a $57 million tax benefit related to the impairment of intangible assets and (ii) $129 million of income tax benefit for the Company's ordinary loss during the nine months ended September 30, 2018. The Company records a valuation allowance against its deferred tax assets to reduce the net carrying value to an amount that it believes is more likely than not to be realized. When the Company establishes or reduces the valuation allowance against its deferred tax assets, the provision for income taxes will increase or decrease, respectively, in the period such determination is made except that, as a result of the 2018 adoption of guidance regarding intra-entity transfers, any change in valuation allowance surrounding the adoption of the intra-entity transfer resulting from this adoption was recorded within equity. The valuation allowance against deferred tax assets was $3,126 million and $2,913 million as of September 30, 2019 and December 31, 2018, respectively. The increase was primarily due to continued losses in Canada. The Company will continue to assess the need for a valuation allowance on a go-forward basis. As of September 30, 2019 and December 31, 2018, the Company had $622 million and $654 million of unrecognized tax benefits, which included $48 million and $42 million of interest and penalties, respectively. Of the total unrecognized tax benefits as of September 30, 2019, $316 million would reduce the Company’s effective tax rate, if recognized. The Company anticipates that unrecognized tax benefits resolved within the next 12 months will not be material. The Company continues to be under examination by the Canada Revenue Agency. The Company’s position as of September 30, 2019 with regard to proposed audit adjustments has not changed and the proposed adjustments continue to result primarily in a loss of tax attributes that are subject to a full valuation allowance. The Internal Revenue Service completed its examinations of the Company’s U.S. consolidated federal income tax returns for the years 2013 and 2014. There were no material adjustments to the Company's taxable income as a result of these examinations. The Company has filed tax returns which used a capital loss generated in 2017 to offset capital gains generated in 2014. As these tax returns were filed subsequent to the commencement of the examination by the Internal Revenue Service, the Company’s 2014 tax year cannot be closed commensurate with the examination’s conclusion. Additionally, the Internal Revenue Service has selected for examination the Company's annual tax filings for 2015 and 2016 and the Company's short period tax return for the period ended September 8, 2017, which was filed as a result of the Company's internal restructuring efforts during 2017. At this time, the Company does not expect that proposed adjustments, if any, for these periods would be material to the Company's consolidated financial statements. The Company's U.S. affiliates remain under examination for various state tax audits in the U.S. for years 2012 through 2017. The Company’s subsidiaries in Germany are under audit for tax years 2013 through 2017. At this time, the Company does not expect that proposed adjustments, if any, would be material to the Company's consolidated financial statements. The Company’s subsidiaries in Australia are under audit by the Australian Tax Office for various years beginning in 2010. At this time, the Company does not expect that proposed adjustments, if any, would be material to the Company's consolidated financial statements. Certain affiliates of the Company in regions outside of Canada, the U.S., Germany and Australia are currently under examination by relevant taxing authorities, and all necessary accruals have been recorded, including uncertain tax benefits. At this time, the Company does not expect that proposed adjustments, if any, would be material to the Company's consolidated financial statements.