Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income including noncontrolling interest	[1]	$ 31.1	$ 51.6
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities:
Depreciation and amortization	[1]	22.6	18.4
Provision for bad debt	[1]	2.5	1.5
Share-based payment award compensation costs	[1]	4.1	4.1
Deferred income tax (benefit) provision	[1]	(6.3)	1.8
Extinguishment of liabilities, net	[1]	(1.0)	(1.8)
Foreign currency (gains) losses, net	[1]	(3.0)	6.2
Other	[1]	0.1	1.4
Changes in assets and liabilities, net of acquisitions:
Accounts receivable, net	[1]	129.5	142.9
Inventories	[1]	0.7	26.1
Prepaid expenses	[1]	(0.2)	11.7
Short-term derivative assets, net	[1]	10.1	85.1
Other current assets	[1]	21.0	(12.8)
Cash collateral with financial counterparties	[1]	15.8	54.0
Other non-current assets	[1]	4.1	7.1
Accounts payable	[1]	(44.7)	(191.2)
Customer deposits	[1]	7.3	(23.6)
Accrued expenses and other current liabilities	[1]	(54.6)	(37.3)
Non-current income tax, net and other long-term liabilities	[1]	(2.1)	(6.7)
Total adjustments	[1]	105.9	86.9
Net cash provided by operating activities	[1]	137.0	138.6
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired and other investments	[1]	(88.1)	(45.3)
Capital expenditures	[1]	(10.0)	(14.1)
Other investing activities, net	[1]	0.2	6.9
Net cash used in investing activities	[1]	(97.9)	(52.6)
Cash flows from financing activities:
Borrowings of debt	[1]	818.8	689.6
Repayments of debt	[1]	(922.5)	(664.6)
Dividends paid on common stock	[1]	(4.1)	(4.2)
Purchases of common stock	[1]	(11.1)	0.0
Purchases of common stock tendered by employees to satisfy the required withholding taxes related to share-based payment awards	[1]	(1.2)	(0.9)
Other financing activities, net	[1]	(0.1)	(0.2)
Net cash (used in) provided by financing activities	[1]	(120.2)	19.6
Effect of exchange rate changes on cash and cash equivalents	[1]	1.8	1.5
Net (decrease) increase in cash and cash equivalents	[1]	(79.3)	107.2
Cash and cash equivalents, as of beginning of period	[1]	698.6	582.5
Cash and cash equivalents, as of end of period	[1]	$ 619.3	$ 689.7

[1] Amounts may not add due to rounding