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Discontinued Operations (Tables)
 9 Months Ended
Sep. 30, 2019
Discontinued Operations [Abstract]  
Summarized Financial Information For Discontinued Operations Text Block [Table Text Block] The components of Discontinued operations, net of tax for the three and nine months ended September 30 were as follows:
 
Three months ended
 
Nine months ended
In millions
2019
 
2018
 
2019
 
2018
Pre-tax earnings (loss) from discontinued operations
$
32.0

 
$
(16.0
)
 
$
22.2

 
$
(36.7
)
Tax benefit (expense)
(7.6
)
 
4.3

 
(5.5
)
 
9.7

Discontinued operations, net of tax
$
24.4

 
$
(11.7
)
 
$
16.7

 
$
(27.0
)