Foreign Operations (Tables)

12 Months Ended

Dec. 31, 2018

Concentration Risks, Types, No Concentration Percentage [Abstract]

Foreign operations data

The following table shows our domestic and foreign revenues and identifiable assets for the years ended or as of December 31 (in millions):

	2018		2017		2016
Revenues
Foreign	$	333.5	$	324.0	$	320.7
United States	1,027.4		1,052.9		1,097.6
Total	$	1,360.9	$	1,376.9	$	1,418.3
Identifiable Assets
Foreign	$	2,470.9	$	2,407.2	$	2,098.2
United States	5,145.8		5,015.2		5,007.2
Total	$	7,616.7	$	7,422.4	$	7,105.4