Quarterly Data (Unaudited)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]



	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total
Year Ended December 31, 2017
Revenues from services	$	4,757.2	$	5,174.8	$	5,464.8	$	5,637.5	$	21,034.3
Gross profit	787.8		861.7		900.6		934.5		3,484.6
Operating profit ^(a)	127.0		194.6		227.9		238.7		788.2
Net earnings ^(b)	74.4		117.0		137.7		216.3		545.4
Net earnings per share — basic	$	1.10	$	1.74	$	2.06	$	3.26	$	8.13
Net earnings per share — diluted ^(c)	1.09		1.72		2.04		3.22		8.04
Dividends per share	—		0.93		—		0.93		1.86

Year Ended December 31, 2016
Revenues from services	$	4,587.7	$	5,022.1	$	5,088.2	$	4,956.1	$	19,654.1
Gross profit	773.8		860.7		858.3		841.0		3,333.8
Operating profit	131.7		196.0		211.1		212.0		750.8
Net earnings	71.7		115.4		129.2		127.4		443.7
Net earnings per share — basic	$	0.98	$	1.61	$	1.89	$	1.89	$	6.33
Net earnings per share — diluted	0.98		1.60		1.87		1.87		6.27
Dividends per share	—		0.86		—		0.86		1.72

(a) Included restructuring costs of $24.0 and $10.5 recorded in the first and second quarter, respectively.

(b) Included net tax benefits related to the Tax Act and French tax reform of $73.7 in the fourth quarter.

(c) Included in the results are restructuring costs per diluted share of $(0.30) and $(0.10) for the first and second quarter, respectively, and net tax benefits per diluted share of $1.10 for the fourth quarter.