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Supplementary Data Other Expense, Net (Tables)
 12 Months Ended
Dec. 31, 2018
Other Nonoperating Income (Expense) [Abstract]  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
Other Expense, Net
Results of operations include certain items that are not directly associated with our revenue-producing operations.
 
Years ended December 31,
 
2018
 
2017
 
2016
Net losses on sales of businesses
$
(61.9
)
 
$
(24.1
)
 
$
(41.4
)
Other
(7.7
)
 
(2.1
)
 
1.1

Total other expense, net
$
(69.6
)
 
$
(26.2
)
 
$
(40.3
)