Supplementary Data Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

Property and Equipment

	December 31,
	2019			2018
Furniture and equipment	$	694.3		$	681.7
Leasehold improvements	634.9			629.0
Internal-use computer software	422.0			368.5
Land and buildings	143.3			146.6
Gross property and equipment	1,894.5			1,825.8
Less: accumulated depreciation and amortization	(1,116.4		)	(1,034.9		)
Total property and equipment, net	$	778.1		$	790.9