XML 67 R41.htm IDEA: XBRL DOCUMENT v3.10.0.1
Redeemable Noncontrolling Interest (Tables)
 12 Months Ended
Dec. 31, 2018
Noncontrolling Interest [Abstract]  
Redeemable Noncontrolling Interest [Table Text Block]
The changes in the components of redeemable NCI during the year ended December 31, were:
(millions)
2018
 
2017
 
2016
Balance, Beginning of year
$
503.7

 
$
483.7

 
$
464.9

Net income attributable to NCI
5.7

 
5.9

 
26.2

Other comprehensive income (loss) attributable to NCI1
(3.3
)
 
2.3

 
(3.2
)
Exercise of employee stock options
9.4

 
3.4

 
0

Purchase/change of ARX minority shares
(298.2
)
 
0

 
0

Change in redemption value of NCI
(2.8
)
 
8.4

 
(4.2
)
Balance, End of year
$
214.5

 
$
503.7

 
$
483.7

1 Amount represents the other comprehensive income (loss) attributable to NCI, as reflected on the the Consolidated Statements of Comprehensive Income; any reclassification to accumulated other comprehensive income (loss) attributable to NCI due to a change in the minority ownership percentage does not impact the amount of redeemable NCI.