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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2019
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation
The income tax provision consisted of the following:
 
Three months ended March 31,
In millions, except rates
2019
 
2018
Income before income taxes
$
98

 
$
244

Income tax expense from continuing operations
4

 
6

Effective income tax rate
4.1
%
 
2.5
%