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PROVISION FOR INCOME TAXES PROVISION FOR INCOME TAXES (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Income Tax Examination [Line Items] |  |  |  |
Provision for income taxes | $ 79 | $ 56 | $ 206 | $ 195
Effective Income Tax Rate Reconciliation, Percent | 20.00% | 20.00% | 19.00% | 21.00%
Discrete items impacting effective tax rate | $ 0 |  |  |
Finalization of prior years' income tax returns |  |  | $ 22 | $ 9
Planned amendments to prior years' income tax returns |  |  | $ 22 |
Foreign tax credits |  | $ 16 |  | 16
Restoration of tax basis for which depreciation deductions were previously limited |  |  |  | $ 16

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