LONG-TERM DEBT AND FINANCING ARRANGEMENTS - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended				12 Months Ended
	Dec. 31, 2014	Nov. 30, 2012	Dec. 28, 2019	Mar. 31, 2018	Dec. 30, 2017	Jul. 01, 2017	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Jan. 03, 2015	Sep. 29, 2018	Sep. 30, 2017	Apr. 01, 2017	Dec. 28, 2013	Jul. 31, 2012
Debt Instrument [Line Items]
Principal amount of long-term debt maturing in year two			$ 400.0				$ 400.0
Principal amount of long-term debt maturing in year three			754.3				754.3
Principal amount of long-term debt maturing after year five			2,050.0				2,050.0
Fair Value Adjustment Of Debt			9.0				9.0
Fair value adjustment and unamortized gain termination of swap			(16.4)				(16.4)
Interest paid							252.9	$ 249.6	$ 198.3
Long-term debt, face amount			3,204.3				3,204.3
Repayments of Long-term Debt							1,150.0	977.5	2.8
Proceeds from Issuance of Long-term Debt							990.0
Unamortized debt discount			1.9				1.9
Debt issuance costs							9.1
Payments of debt extinguishment costs	$ 45.3
Gain (Loss) on Extinguishment of Debt							(17.9)	0.0	0.0	$ 0.1
Amortization of Debt Discount (Premium)										0.3
Commercial Paper and Credit Facilities [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity			3,500.0				3,500.0
Short-term credit lines			$ 337.3				$ 337.3	$ 376.1
Equity Unit Shares Issuable Upon Conversion [Abstract]
Common Stock, Par or Stated Value Per Share			$ 2.5				$ 2.5	$ 2.5
Equity Units Conversion Rate Number Of Common Stock Shares			0.6272		0.7279	0.7241
Convertible Preferred Units [Abstract]
Purchase Of Call Options			$ 19.2	$ 57.3		$ 25.1	$ (19.2)	$ (57.3)	(25.1)
Convertible preferred stock, liquidation preference			$ 1,000			$ 1,000	$ 1,000					$ 1,000
Interest expense recorded							$ 284.3	$ 277.9	222.6
Common Stock, Shares, Issued			176,902,738				176,902,738	176,902,738
Commercial Paper Maximum Borrowing Capacity			$ 3,000.0				$ 3,000.0				$ 3,000.0		$ 3,000.0
Commercial Paper Amount Outstanding			335.5				335.5	$ 228.9
Euro Denominated Commercial paper [Member]
Convertible Preferred Units [Abstract]
Commercial Paper Amount Outstanding								$ 373.0
2018 Credit Agreement [Member] [Member]
Commercial Paper and Credit Facilities [Abstract]
Line of Credit Facility, Current Borrowing Capacity											$ 1,000.0
Line of Credit [Member]
Commercial Paper and Credit Facilities [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity			521.2				521.2
Line of credit facility, available borrowing capacity			432.5				432.5
Short-term credit lines			337.3				337.3
Letter of Credit [Member]
Commercial Paper and Credit Facilities [Abstract]
Short-term credit lines			$ 88.8				88.8
Junior Subordinated Debt [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt							1,487.0
Debt issuance costs							$ 13.4
Notes payable due 2022
Debt Instrument [Line Items]
Long-term debt, face amount		$ 800.0								$ 45.7
Long-term debt, interest rate		2.90%
Proceeds from Issuance of Long-term Debt		$ 793.9
Unamortized debt discount		0.7
Debt issuance costs		$ 5.4
Long-term debt, repurchase price as a percent of principal amount		101.00%
Notes paybable due 2022
Debt Instrument [Line Items]
Long-term debt, interest rate			2.90%				2.90%	2.90%
Unamortized debt discount			$ 0.2				$ 0.2
Notes payable due 2052 (junior subordinated)
Debt Instrument [Line Items]
Long-term debt, face amount			$ 0.0				$ 0.0
Long-term debt, interest rate			5.75%				5.75%	5.75%							5.75%
Repayments of Long-term Debt							$ 760.5
Junior subordinated notes															$ 750.0
Long-term debt, including current maturities			$ 0.0				0.0	$ 731.6
Notes payable due 2052 (junior subordinated) | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Unamortized debt discount			0.0				0.0
Notes payable due 2052 (junior subordinated) | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Fair Value Adjustment Of Debt			0.0				0.0
Notes payable due 2021
Debt Instrument [Line Items]
Long-term debt, including current maturities			$ 406.0				406.0	$ 409.1
Notes 5 Point 75 Percent due 2053 [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate														5.75%
Repayments of Long-term Debt							$ 405.7
Long-term debt, including current maturities														$ 400.0
Notes payable due 2028
Debt Instrument [Line Items]
Long-term debt, interest rate			7.05%				7.05%	7.05%
Long-term debt, including current maturities			$ 168.3				$ 168.3	$ 170.4
Notes payable due 2028 | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Fair Value Adjustment Of Debt			9.0				9.0
Fair value adjustment and unamortized gain termination of swap			(9.0)				(9.0)
Long-term debt, face amount			150.0				150.0
Notes 5 Point 20 Percent Due 2040 [Member]
Debt Instrument [Line Items]
Fair Value Adjustment Of Debt			$ 0.0				$ 0.0
Long-term debt, interest rate			5.20%				5.20%	5.20%
Unamortized debt discount			$ 0.2				$ 0.2
Long-term debt, including current maturities			366.5				366.5	$ 364.9
Notes 5 Point 20 Percent Due 2040 [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Long-term debt, face amount			400.0				400.0
Convertible Notes Payable two Point four Five Percent Due Twenty Eighteen [Member] [Member]
Convertible Preferred Units [Abstract]
Interest expense recorded									$ 15.5
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term debt, face amount			0.0				0.0
Long-term debt, including current maturities			$ 0.0				$ 0.0	$ 7.9
Notes Payable, Other Payables [Member] | Maximum [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate			4.50%				4.50%	4.50%
Notes Payable, Other Payables [Member] | Minimum
Debt Instrument [Line Items]
Long-term debt, interest rate			0.00%				0.00%	0.00%
Notes Payable, Other Payables [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Unamortized debt discount			$ 0.0				$ 0.0
Notes Payable, Other Payables [Member] | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Fair Value Adjustment Of Debt			$ 0.0				$ 0.0
United States of America, Dollars | Line of Credit [Member]
Commercial Paper and Credit Facilities [Abstract]
Weighted average interest rates on short-term borrowings			2.30%				2.30%
Euro Member Countries, Euro | Line of Credit [Member]
Commercial Paper and Credit Facilities [Abstract]
Weighted average interest rates on short-term borrowings			0.30%				0.30%	0.03%