Financial Statements of Parent Company Guarantor - Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Jun. 27, 2015	Sep. 30, 2016	Sep. 26, 2015
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations			$ 459.7	$ 354.5
Cash Provided by (Used in) Operating Activities, Discontinued Operations			97.1	41.4
Operating activities
Net cash provided by (used for) operating activities			556.8	395.9
Investing activities
Capital expenditures			(94.5)	(66.3)
Proceeds from sale of property and equipment			24.1	3.6
Acquisitions, net of cash acquired	$ (0.9)	$ (96.0)	0.0	(1,913.0)
Intercompany Loan Activity, Net				0.0
Payments for (Proceeds from) Other Investing Activities			(3.8)	0.0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations			(74.2)	(1,975.7)
Cash Provided by (Used in) Investing Activities, Discontinued Operations			(4.3)	45.1
Net cash provided by (used for) investing activities			(78.5)	(1,930.6)
Financing activities
Net receipts of short-term borrowings			0.0	(2.0)
Net receipts of commercial paper and revolving long-term debt			(291.1)	276.5
Proceeds from Issuance of Long-term Debt			0.0	1,714.8
Repayments of long-term debt			(0.7)	(4.6)
Payments of Debt Issuance Costs			0.0	(26.8)
Excess tax benefits from share-based compensation			8.8	6.0
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options			20.1	21.9
Repurchases of ordinary shares			0.0	(200.0)
Dividends paid			(181.6)	(173.3)
Net cash provided by (used for) financing activities			(444.5)	1,612.5
Effect of exchange rate changes on cash and cash equivalents			10.8	(43.3)
Change in cash and cash equivalents			44.6	34.5
Cash and cash equivalents, beginning of period	144.9		126.3	110.4
Cash and cash equivalents, end of period	126.3		170.9	144.9
Parent Company Guarantor
Operating activities
Net cash provided by (used for) operating activities			364.1	421.3
Investing activities
Acquisitions, net of cash acquired				0.0
Intercompany Loan Activity, Net				0.0
Net cash provided by (used for) investing activities				0.0
Financing activities
Net change in advances to subsidiaries			(202.6)	(48.0)
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options			20.1
Repurchases of ordinary shares				(200.0)
Dividends paid			(181.6)	(173.3)
Net cash provided by (used for) financing activities			(364.1)	(421.3)
Change in cash and cash equivalents				0.0
Cash and cash equivalents, beginning of period	0.0		0.0	0.0
Cash and cash equivalents, end of period	0.0		0.0	0.0
Guarantor Subsidiary [Member]
Operating activities
Net cash provided by (used for) operating activities			327.7	393.3
Investing activities
Intercompany Loan Activity, Net				0.0
Financing activities
Net change in advances to subsidiaries			(327.7)	(393.3)
Net cash provided by (used for) financing activities			(327.7)	(393.3)
Cash and cash equivalents, end of period			0.0
Subsidiary Issuer
Operating activities
Net cash provided by (used for) operating activities			327.1	406.1
Investing activities
Intercompany Loan Activity, Net			497.9	1,657.8
Net Cash Provided by (Used in) Investing Activities, Continuing Operations			497.9	1,657.8
Net cash provided by (used for) investing activities			497.9	1,657.8
Financing activities
Net receipts of commercial paper and revolving long-term debt			(280.2)	274.9
Proceeds from Issuance of Long-term Debt				1,714.8
Payments of Debt Issuance Costs				(26.8)
Net change in advances to subsidiaries			(557.1)	(4,021.2)
Net cash provided by (used for) financing activities			(837.3)	(2,058.3)
Effect of exchange rate changes on cash and cash equivalents			12.2	(5.5)
Change in cash and cash equivalents			(0.1)	0.1
Cash and cash equivalents, beginning of period	0.2		0.1	0.1
Cash and cash equivalents, end of period	0.1		0.0	0.2
Non-Guarantor Subsidiaries
Operating activities
Net cash provided by (used for) operating activities			653.9	408.1
Investing activities
Capital expenditures			(94.5)	(66.3)
Proceeds from sale of property and equipment			24.1	3.6
Acquisitions, net of cash acquired				(1,913.0)
Intercompany Loan Activity, Net			(193.9)	(149.8)
Payments for (Proceeds from) Other Investing Activities			(3.8)	0.0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations			(268.1)	(2,125.5)
Cash Provided by (Used in) Investing Activities, Discontinued Operations			(4.3)	45.1
Net cash provided by (used for) investing activities			(272.4)	(2,080.4)
Financing activities
Net receipts of short-term borrowings				(2.0)
Net receipts of commercial paper and revolving long-term debt			(10.9)	1.6
Repayments of long-term debt			(0.7)	(4.6)
Payments of Debt Issuance Costs				0.0
Net change in advances to subsidiaries			(332.6)	1,721.6
Excess tax benefits from share-based compensation			8.8	6.0
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options			0.0	21.9
Repurchases of ordinary shares				0.0
Dividends paid			0.0
Net cash provided by (used for) financing activities			(335.4)	1,744.5
Effect of exchange rate changes on cash and cash equivalents			(1.4)	(37.8)
Change in cash and cash equivalents			44.7	34.4
Cash and cash equivalents, beginning of period	144.7		126.2	110.3
Cash and cash equivalents, end of period	$ 126.2		170.9	144.7
Consolidation, Eliminations [Member]
Operating activities
Net cash provided by (used for) operating activities			(1,116.0)	(1,232.9)
Investing activities
Intercompany Loan Activity, Net			(304.0)	(1,508.0)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations			(304.0)	(1,508.0)
Net cash provided by (used for) investing activities			(304.0)	(1,508.0)
Financing activities
Payments of Debt Issuance Costs				0.0
Net change in advances to subsidiaries			1,420.0	2,740.9
Net cash provided by (used for) financing activities			$ 1,420.0	$ 2,740.9