Supplementary Data Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2018

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Supplemental Cash Flow Information

	Years ended December 31,
	2018		2017		2016
Cash paid for interest	$	88.7	$	82.3	$	78.8
Cash paid for income taxes, net of refunds 1	207.9		228.4		244.1

1 Refunds of $24.3, $31.9 and $26.6 were received for the years ended December 31, 2018, 2017 and 2016, respectively.