Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Dec. 29, 2018	Mar. 01, 2019	Feb. 15, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 968.4		$ 968.4
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	(13.0)		(13.0)
Cost of Goods and Services Sold	2,461.5	$ 2,356.5	4,689.5	$ 4,400.1
Interest Expense	72.4	69.0	$ 146.8	132.2
Document Period End Date			Jun. 29, 2019
Payments for (Proceeds from) Derivative Instrument, Investing Activities			$ 22.3	(23.5)
Debt instrument, face amount	$ 3,954.3		3,954.3
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			$ 3.7	(11.6)
Notes 3 Point 4 Percent Due in 2021 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Stated interest rate	3.40%		3.40%
Notes payable due 2040
Derivative Instruments, Gain (Loss) [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	$ 31.2		$ 31.2
Stated interest rate	5.20%		5.20%
Notes payable due 2028
Derivative Instruments, Gain (Loss) [Line Items]
Stated interest rate	7.05%		7.05%
Notes Payable due 2022 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt instrument, face amount	$ 754.3		$ 754.3
Notes 5 Point 75 Percent Due 2052 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Stated interest rate	5.75%		5.75%
Debt instrument, face amount	$ 750.0		$ 750.0
Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
After-tax gain (loss) for cash flow hedge effectiveness in accumulated other comprehensive loss	(44.8)		(44.8)		$ (26.8)
Cash flow gain (loss) hedge loss expected to be reclassified to earnings as hedged transactions occur or as amounts are amortized within the next 12 months			(1.5)
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	(1.1)	(7.1)	(3.2)	(11.7)
Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Loss on Derivative	0.7	0.8	6.1	1.6
Fixed-to-Floating Interest Rate Swaps Terminated | Notes 3 Point 4 Percent Due in 2021 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	8.4		8.4
Fixed-to-Floating Interest Rate Swaps Terminated | Notes 5 Point 75 Percent Due 2052 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	0.0		0.0
Foreign Exchange Forward | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Interest Rate Derivatives	618.3		618.3		240.0
Foreign Exchange Option | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Interest Rate Derivatives	166.0		166.0		370.0
Foreign Exchange Contracts | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Payments for (Proceeds from) Derivative Instrument, Investing Activities			(3.9)	(20.3)
Derivative, Gain (Loss) on Derivative, Net			(72.2)		(63.3)
Notional Amount of Interest Rate Derivatives	326.1		326.1
Foreign Exchange Contracts | Net Investment Hedging [Member] | Currency, British Pound Sterling
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Interest Rate Derivatives					262.4
Currency Swap [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Interest Rate Derivatives	1,500.0		1,500.0		250.0
Options Held [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Interest Rate Derivatives	35.1		35.1		35.1
Interest Rate Swap [Member] | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated other comprehensive loss into earnings			(1.0)
Notional Amount of Interest Rate Derivatives	400.0		400.0			$ 250.0	$ 650.0
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Fair Value, Gross Liability	960.4		960.4		244.8
Not Designated as Hedging Instrument [Member] | Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Interest Rate Derivatives	1,000.0		1,000.0		1,000.0
Interest Expense [Member] | Interest Rate Contracts | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(17.5)	3.8	(28.4)	21.8
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	4.1	3.8	8.1	7.6
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0.0		0.0
Interest Expense [Member] | Foreign Exchange Contracts | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Hedged Item, Gain (Loss) Effect on Income Statement	0.0	0.0	0.0	0.0
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	0.0	0.0	0.0	0.0
Interest Expense [Member] | Interest Rate Swap [Member] | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	4.1	3.8	8.1	7.6
Other Expense [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated other comprehensive loss into earnings		0.0	0.0	0.0
Derivative, Loss on Derivative	0.0	0.0	0.0	0.0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.0
Other Expense [Member] | Currency Swap [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	(6.8)	(1.7)	(14.5)	(3.4)
Derivative, Loss on Derivative	6.8	1.7	14.5	3.4
Other Expense [Member] | Forward Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	7.4	48.7	6.2	22.2
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	(1.3)	(2.3)	(2.3)	(4.1)
Derivative, Loss on Derivative	1.3	2.3	2.3	4.1
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0.0	2.3	4.2	6.2
Other Expense [Member] | Cross Currency Interest Rate Contract [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(2.4)	1.4	23.5	2.9
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	10.6	1.4	24.0	8.3
Other Expense [Member] | Equity Option [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(1.1)	2.6	(2.1)	(0.9)
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	0.0	0.0	0.0	0.0
Derivative, Loss on Derivative	0.0	0.0	0.0	0.0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0.0	0.0	0.0	0.0
Other Expense [Member] | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non Derivative Instrument, (Gain) Loss Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(11.4)	51.5	4.2	38.9
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0.0	0.0	0.0	0.0
Other, net | Interest Rate Contracts | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	0.0	0.0	0.0	0.0
Other, net | Foreign Exchange Contracts | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(2.5)	29.7	4.5	23.0
Derivative, Hedged Item, Gain (Loss) Effect on Income Statement	(2.7)	9.2	(2.5)	12.0
Gain (loss) reclassified from accumulated other comprehensive loss into earnings	(2.7)	9.2	(2.5)	12.0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0.0	$ 0.0	0.0	$ 0.0
Short-term Debt [Member] | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Fair Value, Gross Liability					228.9
Hedging Liabilities, Current	909.5		909.5		228.9
Other current assets | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	3.1		3.1		2.1
Long-term Debt [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	(16.0)		(16.0)		(10.0)
Fair Value, Measurements, Recurring
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Fair Value, Gross Liability	58.9		58.9		21.3
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Fair Value, Gross Liability					21.3
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 58.9		$ 58.9		$ 250.2