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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2019
Income Tax Disclosure [Abstract]  
Schedule of Effective Tax Rate
The effective tax rate is as follows:
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
In millions
 
2019
 
2018
 
2019
 
2018
Effective tax rate
 
(150.0
)%
 
(80.0
)%
 
%
 
(87.5
)%