CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facilities		$ 1,323.7	$ 0.0
Noncontrolling interest distributions		(0.8)	(1.7)
Deferred payments on acquisitions		(1.6)	(4.9)
Proceeds from Issuance of Long-term Debt	$ 0.0	1,200.0
Repayments of Long-term Capital Lease Obligations		(6.0)	(6.0)
Net proceeds from issuance of stock to employees		65.2	67.4
Payments for Repurchase of Common Stock		(298.1)	0.0
Repayments of Senior Debt		(500.0)	(325.0)
Payments On Zero Coupon Subordinated Notes		(33.8)	(31.5)
Proceeds from Issuance of Other Long-term Debt	0.0
Repayments of Lines of Credit		(1,323.7)
Repayments of Other Long-term Debt		(50.0)
Line of Credit Facility Payment	0.0		0.0
Payments of Debt Issuance Costs	0.0	(13.6)
Net cash provided by (used for) financing activities		1,111.3	(301.7)
Proceeds from (Repayments of) Other Long-term Debt		750.0
Proceeds from Issuance of Other Long-term Debt	0.0
Net earnings	179.8	564.8	548.6
Earnings before income taxes	263.4	845.9	828.9
Accreted interest on zero-coupon subordinated notes		0.3	1.3
Proceeds from Sale of Equity Method Investments		0.0	13.5
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization		388.2	368.9
Stock compensation		85.8	81.9
Loss on sale of assets		2.3	(2.3)
Cumulative earnings in excess of distributions from equity method investments		(0.4)	0.4
Asset Impairment Charges		23.5	0.0
Deferred income taxes		(0.1)	5.2
Change in assets and liabilities (net of effects of acquisitions):
Increase in accounts receivable (net)		(83.0)	(109.2)
Increase (Decrease) in Unbilled Receivables		(40.5)	(59.7)
Increase in inventories		(6.4)	(4.8)
Decrease in prepaid expenses and other		(23.8)	(19.5)
Decrease in accounts payable		29.6	(56.3)
Increase (Decrease) in Deferred Revenue		10.0	23.4
Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities		(54.9)	(50.9)
Net cash provided by operating activities		895.4	727.0
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures		(216.8)	(204.6)
Proceeds from sale of assets		1.2	23.9
Line of Credit Facility Payment	0.0		0.0
Payments to Acquire Intangible Assets		2.3	0.0
Investments in equity affiliates		(33.2)	(12.1)
Acquisition of businesses, net of cash acquired		(1,799.3)	(396.8)
Net cash used for investing activities		(2,050.4)	(576.1)
Proceeds from Issuance of Long-term Debt	0.0	1,200.0
Effect of exchange rate changes on cash and cash equivalents		19.4	2.0
Net increase (decrease) in cash and cash equivalents		(24.3)	(148.8)
Cash and cash equivalents at beginning of period		433.6	716.4
Cash and cash equivalents at end of period	$ 567.6	$ 409.3	$ 567.6