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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2021
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Provisions The tax (benefit) provision for the third quarter and nine months ended September 30, 2021 and 2020 were comprised of the following:
Third quarter endedNine months ended
 September 30,September 30,
 2021202020212020
Pre-tax income (loss) at estimated annual effective income tax rate before discrete items$$(4)$73 $34 
Impact of change in estimated annual effective tax rate on previous quarter’s pre-tax income(2)— — 
Interim period treatment of operational losses in foreign jurisdictions for which no tax benefit is recognized— (1)— 
Other discrete items(12)(41)(9)(39)
(Benefit) provision for income taxes$(4)$(48)$65 $(5)