LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Detail) - USD ($)			1 Months Ended			3 Months Ended			12 Months Ended
	Dec. 15, 2018	Nov. 17, 2016	Nov. 30, 2016	Dec. 31, 2013	Jul. 31, 2012	Dec. 30, 2017	Jul. 01, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Sep. 30, 2017	Apr. 01, 2017	Jan. 01, 2017	Feb. 01, 2016	Dec. 24, 2015	Oct. 03, 2015	Apr. 04, 2015	Jan. 01, 2011	Nov. 30, 2010
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 3,600,000,000			$ 3,600,000,000
sub-limit on revolving credit facility						400,000,000			400,000,000							$ 400,000,000
Option Indexed to Issuer's Equity, Settlement Alternatives, Shares, at Fair Value								711,376		711,376							293,142		1,692,778	911,077
Cash Settlement on Forward Stock Purchase Contract		$ 345,000,000							0	$ (147,400,000)	$ 0
Commercial Paper Current Borrowing Capacity															$ 2,000,000,000
Temporary Equity, Redemption Price Per Share											$ 5.00
Preferred Stock, Liquidation Preference Per Share							$ 1,000							$ 1,000				$ 100.49
Preferred Stock, Par or Stated Value Per Share																		$ 100
Present value of the contract adjustment payments						$ 117,100,000			117,100,000			$ 40,200,000										$ 14,900,000
Equity Units Conversion Rate Number Of Common Stock Shares			3,504,165			0.7246	0.7241			418,234
Gains (Losses) on Extinguishment of Debt												100,000
Amortization of Debt Discount (Premium)												$ 300,000
Fair Value Adjustment Of Interest Rate Swap						$ (4,300,000)			(4,300,000)
Less: Current maturities of long-term debt						(983,400,000)		$ (7,800,000)	(983,400,000)	$ (7,800,000)
Long-Term Debt						2,843,000,000		3,815,300,000	2,843,000,000	3,815,300,000
Long-term debt, interest rate																					4.25%
Preferred Stock, Value, Issued						750,000,000		0	750,000,000	0								$ 632,500,000				$ 632,500,000
Debt Instrument, Face Amount						3,856,700,000			3,856,700,000
Unamortized debt discount						(700,000)			(700,000)
Interest expense									222,600,000	194,500,000	$ 180,400,000
Debt issuance costs									1,600,000
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						3,600,000			3,600,000
Fair Value Adjustment Of Debt						11,100,000			11,100,000
Debt Issuance Costs, Net						(37,100,000)		(41,700,000)	(37,100,000)	(41,700,000)
Long-term Debt and Capital Lease Obligations, Including Current Maturities						3,826,400,000		3,823,100,000	3,826,400,000	3,823,100,000
Stock Issued During Period, Value, Treasury Stock Reissued		$ 98.45						98.45	90,800,000	407,000,000	$ 135,300,000
Commercial Paper Maximum Borrowing Capacity						3,000,000,000			3,000,000,000						$ 3,000,000,000
Commercial Paper Amount Outstanding						3,000,000,000		$ 2,000,000,000	3,000,000,000	$ 2,000,000,000
Debt Instrument, Unamortized Discount, Noncurrent						$ 900,000			$ 900,000
Minimum
Debt Instrument [Line Items]
Long-term debt, interest rate						0.00%		0.00%	0.00%	0.00%
Maximum
Debt Instrument [Line Items]
Long-term debt, interest rate						3.06%		3.06%	3.06%	3.06%
Notes Payable due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt, including current maturities						$ 750,900,000		$ 750,300,000	$ 750,900,000	$ 750,300,000
Debt Instrument, Face Amount						754,300,000			754,300,000
Unamortized debt discount						(300,000)			(300,000)
Debt Issuance Costs, Net						(3,100,000)			(3,100,000)
Notes Payable due 2022 [Member] | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						0			0
Fair Value Adjustment Of Debt						$ 0			$ 0
Junior Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate						2.25%			2.25%		2.25%
Interest expense									$ 5,600,000	700,000
Notes 2 Point 45 Percent due 2018 [Member] [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage						2.45%			2.45%
Long-term debt, including current maturities						$ 630,900,000		$ 629,200,000	$ 630,900,000	$ 629,200,000
Long-term debt, interest rate						2.45%		2.45%	2.45%	2.45%	2.45%
Debt Instrument, Face Amount						$ 632,500,000			$ 632,500,000
Debt Issuance Costs, Net						(1,600,000)			(1,600,000)
Notes 2 Point 45 Percent due 2018 [Member] [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Unamortized debt discount						0			0
Notes 2 Point 45 Percent due 2018 [Member] [Member] | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						0			0
Fair Value Adjustment Of Debt						$ 0			$ 0
Notes 1 Point 62 Percent due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage						1.62%			1.62%
Long-term debt, including current maturities						$ 344,100,000		$ 343,100,000	$ 344,100,000	$ 343,100,000
Long-term debt, interest rate								1.62%		1.62%
Debt Instrument, Face Amount						345,000,000			345,000,000
Debt Issuance Costs, Net						(900,000)			(900,000)
Notes 1 Point 62 Percent due 2018 [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Unamortized debt discount						0			0
Notes 1 Point 62 Percent due 2018 [Member] | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						0			0
Fair Value Adjustment Of Debt						0			0
Convertible Notes Payable two Point four Five Percent Due Twenty Eighteen [Member] [Member]
Debt Instrument [Line Items]
Interest expense									15,500,000	$ 15,500,000	$ 1,900,000
Notes payable due 2028
Debt Instrument [Line Items]
Long-term debt, including current maturities						$ 172,600,000		$ 174,700,000	$ 172,600,000	$ 174,700,000
Long-term debt, interest rate						7.05%		7.05%	7.05%	7.05%
Debt Issuance Costs, Net						$ 0			$ 0
Notes payable due 2028 | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Fair Value Adjustment Of Interest Rate Swap						(11,100,000)			(11,100,000)
Debt Instrument, Face Amount						150,000,000			150,000,000
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						(11,500,000)			(11,500,000)
Fair Value Adjustment Of Debt						11,100,000			11,100,000
Notes 5 Point 20 Percent Due 2040 [Member]
Debt Instrument [Line Items]
Long-term debt, including current maturities						$ 363,300,000		$ 361,700,000	$ 363,300,000	$ 361,700,000
Long-term debt, interest rate						5.20%		5.20%	5.20%	5.20%
Unamortized debt discount						$ (200,000)			$ (200,000)
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						(33,400,000)			(33,400,000)
Fair Value Adjustment Of Debt						0			0
Debt Issuance Costs, Net						(3,100,000)			(3,100,000)
Notes 5 Point 20 Percent Due 2040 [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount						400,000,000			400,000,000
Notes payable due 2052 (junior subordinated)
Debt Instrument [Line Items]
Long-term debt, including current maturities						$ 731,000,000		$ 730,400,000	$ 731,000,000	$ 730,400,000
Long-term debt, interest rate					5.75%	5.75%		5.75%	5.75%	5.75%
Debt Instrument, Face Amount						$ 750,000,000			$ 750,000,000
Debt issuance costs					$ 20,600,000
Debt Issuance Costs, Net						(19,000,000)			(19,000,000)
Notes payable due 2052 (junior subordinated) | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Unamortized debt discount						0			0
Notes payable due 2052 (junior subordinated) | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						0			0
Fair Value Adjustment Of Debt						0			0
Notes 5 Point 75 Percent due 2053 [Member]
Debt Instrument [Line Items]
Long-term debt, including current maturities						$ 396,600,000		$ 396,500,000	$ 396,600,000	$ 396,500,000			$ 400,000,000
Long-term debt, interest rate						5.75%		5.75%	5.75%	5.75%			5.75%
Debt Instrument, Face Amount						$ 400,000,000			$ 400,000,000
Debt issuance costs				$ 8,000,000
Debt Issuance Costs, Net						(8,100,000)			(8,100,000)
Notes 5 Point 75 Percent due 2053 [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Unamortized debt discount						0			0
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						(4,700,000)			(4,700,000)
Fair Value Adjustment Of Debt						0			0
Other, payable in varying amounts through 2021
Debt Instrument [Line Items]
Long-term debt, including current maturities						24,900,000		$ 22,000,000	24,900,000	$ 22,000,000
Debt Instrument, Face Amount						24,900,000			24,900,000
Debt Issuance Costs, Net						0			0
Other, payable in varying amounts through 2021 | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Unamortized debt discount						0			0
Other, payable in varying amounts through 2021 | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						0			0
Fair Value Adjustment Of Debt						$ 0			$ 0
Notes 3 Point 4 Percent Due in 2021 [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate						3.40%		3.40%	3.40%	3.40%
Debt Issuance Costs, Net						$ (1,300,000)			$ (1,300,000)
Notes 3 Point 4 Percent Due in 2021 [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount						400,000,000			400,000,000
Unamortized debt discount						(200,000)			(200,000)
Notes 3 Point 4 Percent Due in 2021 [Member] | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge						(13,600,000)			(13,600,000)
Fair Value Adjustment Of Debt						0			0
Notes 7 Point 05 Percent Due in 2028 [Member] | Fixed To Floating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Unamortized debt discount						0			$ 0
Treasury Stock [Member]
Debt Instrument [Line Items]
Convertible Preferred Stock, Shares Issued upon Conversion																		2,900,000
Common Stock
Debt Instrument [Line Items]
Equity Units Conversion Rate Number Of Common Stock Shares		1.0157								1.0157
Common Stock | Minimum
Debt Instrument [Line Items]
Equity Units Conversion Rate Number Of Common Stock Shares		1.0122							1.0122				1.0122
Scenario, Forecast [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	4.304%
Line of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						624,900,000			$ 624,900,000
2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity																1,300,000,000
Line of Credit Facility, Current Borrowing Capacity						$ 1,250,000,000			$ 1,250,000,000							$ 1,300,000,000
United States of America, Dollars | Line of Credit [Member]
Debt Instrument [Line Items]
Short-term Debt, Weighted Average Interest Rate						1.20%		0.60%	1.20%	0.60%