Consolidated Statements Of Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Income Statement [Abstract]
Revenues from services	$ 5,096.4	[1]	$ 5,072.4	[1]
Cost of services	4,249.0		4,214.8
Gross profit	847.4		857.6
Selling and administrative expenses	753.6		772.0
Operating profit	93.8		85.6
Interest and other expenses	11.8		11.1
Earnings before income taxes	82.0		74.5
Provision for income taxes	41.8		38.8
Net earnings	$ 40.2		$ 35.7
Net earnings per share - basic	$ 0.50		$ 0.44
Net earnings per share - diluted	$ 0.50		$ 0.43
Weighted average shares - basic	80.2		81.9
Weighted average shares - diluted	80.9		83.6

[1] Our consolidated Revenues from Services include fees received from our franchise offices of $5.4 and $5.9 for the three months ended March 31, 2012 and 2011, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $253.9 and $274.5 for the three months ended March 31, 2012 and 2011, respectively.