Software, net (Tables)

12 Months Ended

Dec. 31, 2018

Research and Development [Abstract]

Schedule of Capitalized Computer Software

Software, net consisted of the following:

	As of December 31,
	2018			2017
Software	$	1,101.6		$	1,003.2
Accumulated amortization	(816.3		)	(663.8		)
Software, net	$	285.3		$	339.4

Schedule of Software Amortization Expense

The following reflects intangible amortization expense included within D&A:

	Year Ended December 31,
	2018		2017		2016
Amortization expense	$	297.1	$	260.0	$	251.9

The following reflects amortization of software included within D&A:

	Year Ended December 31,
	2018		2017		2016
Amortization expense	$	160.5	$	153.3	$	158.9