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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2021
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Provisions The tax provision (benefit) for the second quarter and six months ended June 30, 2021 and 2020 were comprised of the following:
Second quarter endedSix months ended
 June 30,June 30,
 2021202020212020
Pre-tax income (loss) at estimated annual effective income tax rate before discrete items$32 $(31)$65 $40 
Impact of change in estimated annual effective tax rate on previous quarter’s pre-tax income(1)18 — — 
Interim period treatment of operational losses in foreign jurisdictions for which no tax benefit is recognized
Other discrete items10 
Provision (benefit) for income taxes$36 $(2)$69 $43