Condensed Consolidating Statements of Cash Flows (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities, net	$ (229.4)	$ (49.9)
Net change in short-term debt	(65.9)	52.7
Proceeds from issuance of long-term debt	898.8	1,104.8
Payments on long-term debt	(37.2)	(589.6)
Issuance (repurchase) of common stock, net	897.7	(269.5)
Excess tax benefits from stock-based compensation	21.8	35.2
Other	(13.4)	(26.3)
Net cash provided by (used in) financing activities	1,701.8	307.3
Additions to property, plant and equipment	(146.5)	(149.2)
Acquisition of businesses, net of cash acquired	(1,393.9)	(517.7)
Other	41.0	3.5
Net cash provided by (used in) investing activities	(1,499.4)	(663.4)
Effect of exchange rate changes on cash	(42.3)	(16.2)
Net decrease in cash and cash equivalents	(69.3)	(422.2)
Cash and cash equivalents at beginning of period	1,164.8	1,128.5
Cash and cash equivalents at end of period	1,095.5	706.3
Parent Company
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities, net	(71.6)	(173.5)
(Payments on) proceeds from intercompany transactions	(332.3)	(409.0)
Proceeds from issuance of long-term debt	896.8	1,092.5
Payments on long-term debt	(36.0)	(588.0)
Issuance (repurchase) of common stock, net	897.7	(269.5)
Excess tax benefits from stock-based compensation	21.8	35.2
Other	(7.5)	(18.1)
Net cash provided by (used in) financing activities	1,440.5	(156.9)
Additions to property, plant and equipment	(10.0)	(3.2)
Acquisition of businesses, net of cash acquired	(1,378.2)
Net cash provided by (used in) investing activities	(1,388.2)	(3.2)
Net decrease in cash and cash equivalents	(19.3)	(333.6)
Cash and cash equivalents at beginning of period	728.8	630.8
Cash and cash equivalents at end of period	709.5	297.2
Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities, net	10.7	204.8
Net change in short-term debt	(0.5)
(Payments on) proceeds from intercompany transactions	96.6	249.2
Proceeds from issuance of long-term debt		1.6
Payments on long-term debt	(0.6)	(1.0)
Other	(0.4)	(7.6)
Net cash provided by (used in) financing activities	95.1	242.2
Additions to property, plant and equipment	(97.2)	(94.7)
Acquisition of businesses, net of cash acquired	(7.1)	(340.4)
Intercompany investing activities, net	(4.6)
Other	(1.9)	(1.0)
Net cash provided by (used in) investing activities	(110.8)	(436.1)
Net decrease in cash and cash equivalents	(5.0)	10.9
Cash and cash equivalents at beginning of period	9.3	13.5
Cash and cash equivalents at end of period	4.3	24.4
Non-Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities, net	(168.5)	(76.1)
Net change in short-term debt	(65.4)	52.7
(Payments on) proceeds from intercompany transactions	240.3	154.7
Proceeds from issuance of long-term debt	2.0	10.7
Payments on long-term debt	(0.6)	(0.6)
Other	(5.5)	(0.6)
Net cash provided by (used in) financing activities	170.8	216.9
Additions to property, plant and equipment	(39.3)	(51.3)
Acquisition of businesses, net of cash acquired	(8.6)	(177.3)
Other	42.9	4.5
Net cash provided by (used in) investing activities	(5.0)	(224.1)
Effect of exchange rate changes on cash	(42.3)	(16.2)
Net decrease in cash and cash equivalents	(45.0)	(99.5)
Cash and cash equivalents at beginning of period	426.7	484.2
Cash and cash equivalents at end of period	381.7	384.7
Eliminations
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities, net		(5.1)
(Payments on) proceeds from intercompany transactions	(4.6)	5.1
Net cash provided by (used in) financing activities	(4.6)	$ 5.1
Intercompany investing activities, net	4.6
Net cash provided by (used in) investing activities	$ 4.6