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	Nov. 30, 2012	Jul. 31, 2012	Dec. 31, 2016	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Feb. 28, 2017	Jan. 01, 2017	Feb. 01, 2016	Dec. 24, 2015	Oct. 03, 2015	Apr. 04, 2015	Dec. 28, 2013	Jan. 01, 2011	Nov. 30, 2010
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							$ 2,300,000,000	$ 2,300,000,000
sub-limit on revolving credit facility												$ 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						$ (147,400,000)	$ 0	$ 0
Commercial Paper Current Borrowing Capacity							$ 2,000,000,000	$ 2,000,000,000
Temporary Equity, Redemption Price Per Share							$ 5.00	$ 5.00
Preferred Stock, Liquidation Preference Per Share														$ 100.49
Preferred Stock, Par or Stated Value Per Share														$ 100
Present value of the contract adjustment payments									40,200,000										$ 14,900,000
Equity Units Conversion Rate Number Of Common Stock Shares			3,504,165					418,234
Gains (Losses) on Extinguishment of Debt									100,000
Amortization of Debt Discount (Premium)									300,000
Fair Value Adjustment Of Interest Rate Swap							$ (1,200,000)	$ (1,200,000)
Equity Unit Shares Issuable Upon Conversion [Abstract]
Less: Current maturities of long-term debt							(7,800,000)	(7,800,000)	(5,100,000)
Long-Term Debt							3,815,300,000	3,815,300,000	3,792,100,000
Long-term debt, interest rate																		4.25%
Preferred Stock, Value, Issued							0	0	0					$ 632,500,000					$ 632,500,000
Debt Instrument, Face Amount							3,853,800,000	3,853,800,000
Unamortized debt discount							(700,000)	(700,000)
Interest expense								194,500,000	180,400,000	177,200,000
Debt issuance costs								3,300,000
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge							500,000	500,000
Fair Value Adjustment Of Debt							12,200,000	12,200,000
Debt Issuance Costs, Net							(41,700,000)	(41,700,000)	(45,000,000)
Long-term Debt and Capital Lease Obligations, Including Current Maturities							3,823,100,000	3,823,100,000	3,797,200,000
Stock Issued During Period, Value, Treasury Stock Reissued		98.45					98.45	407,000,000	$ 135,300,000	$ 60,400,000
Commercial Paper Maximum Borrowing Capacity							3,000,000,000	3,000,000,000				3,000,000,000
Debt Instrument, Unamortized Discount, Noncurrent							$ 1,900,000	$ 1,900,000
Minimum
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, interest rate							0.00%	0.00%	0.00%
Maximum
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, interest rate							2.27%	2.27%	2.27%
Notes 2 Point 25 Percent due 2018 [Member]
Debt Instrument [Line Items]
Cash Settlement on Forward Stock Purchase Contract								$ 345,000,000
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities		$ 345,000,000					$ 343,100,000	$ 343,100,000	$ 343,800,000								$ 345,000,000
Long-term debt, interest rate							1.622%	1.622%	2.45%								2.25%
Debt Instrument, Face Amount							$ 345,000,000	$ 345,000,000
Interest expense								6,800,000	$ 7,800,000
Debt Issuance Costs, Net							(1,900,000)	(1,900,000)
Notes 2 Point 25 Percent due 2018 [Member] | Fixed To Floating Interest Rate Swap [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Unamortized debt discount							0	0
Notes 2 Point 25 Percent due 2018 [Member] | Fixedto Floating Interest Rate Swaps Terminated [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge							0	0
Fair Value Adjustment Of Debt							$ 0	$ 0
Junior Subordinated Debt [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, interest rate							2.25%	2.25%
Interest expense								$ 700,000
Convertible notes payable due in 2018 (subordinated)
Debt Instrument [Line Items]
Preferred Stock, Par or Stated Value Per Share																			$ 100
Equity Unit Shares Issuable Upon Conversion [Abstract]
Convertible Preferred Stock Shares Issuable Upon Conversion		3,504,165
Long-term debt, including current maturities																			$ 632,500,000
Long-term debt, interest rate									2.25%									4.25%
Debt Instrument, Face Amount																		$ 632,500,000
Interest expense								$ 23,300,000	$ 26,900,000
Notes 2 Point 45 Percent due 2018 [Member] [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage							2.45%	2.45%
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities							$ 629,200,000	$ 629,200,000	627,500,000
Long-term debt, interest rate							2.45%	2.45%
Debt Instrument, Face Amount							$ 632,500,000	$ 632,500,000
Debt Issuance Costs, Net							(3,300,000)	(3,300,000)
Notes 2 Point 45 Percent due 2018 [Member] [Member] | Fixed To Floating Interest Rate Swap [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Unamortized debt discount							0	0
Notes 2 Point 45 Percent due 2018 [Member] [Member] | Fixedto Floating Interest Rate Swaps Terminated [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
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]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Interest expense							15,500,000	1,900,000
Notes payable due 2021
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities							415,200,000	415,200,000	$ 405,900,000
Long-term debt, interest rate									3.40%
Notes payable due 2022
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities							$ 750,300,000	$ 750,300,000	$ 749,600,000
Long-term debt, interest rate					2.90%		2.90%	2.90%	2.90%
Debt Instrument, Face Amount					$ 800,000,000				$ 45,700,000
Unamortized debt discount					(700,000)
Debt issuance costs					$ 5,400,000
Debt Issuance Costs, Net							$ (3,700,000)	$ (3,700,000)
Notes payable due 2022 | Fixedto Floating Interest Rate Swaps Terminated [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge							0	0
Fair Value Adjustment Of Debt							0	0
Notes payable due 2028
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities							$ 174,700,000	$ 174,700,000	$ 167,000,000
Long-term debt, interest rate							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							(12,200,000)	(12,200,000)
Equity Unit Shares Issuable Upon Conversion [Abstract]
Debt Instrument, Face Amount							150,000,000	150,000,000
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge							(12,500,000)	(12,500,000)
Fair Value Adjustment Of Debt							12,200,000	12,200,000
Notes 5 Point 20 Percent Due 2040 [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities							$ 361,700,000	$ 361,700,000	$ 360,100,000
Long-term debt, interest rate							5.20%	5.20%	5.20%
Unamortized debt discount							$ (200,000)	$ (200,000)
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge							(34,900,000)	(34,900,000)
Fair Value Adjustment Of Debt							0	0
Debt Issuance Costs, Net							(3,200,000)	(3,200,000)
Notes 5 Point 20 Percent Due 2040 [Member] | Fixed To Floating Interest Rate Swap [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Debt Instrument, Face Amount							400,000,000	400,000,000
Notes payable due 2052 (junior subordinated)
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities							$ 730,400,000	$ 730,400,000	$ 729,900,000
Long-term debt, interest rate						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							(19,600,000)	(19,600,000)
Notes payable due 2052 (junior subordinated) | Fixed To Floating Interest Rate Swap [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Unamortized debt discount							0	0
Notes payable due 2052 (junior subordinated) | Fixedto Floating Interest Rate Swaps Terminated [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
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]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities							$ 396,500,000	$ 396,500,000	$ 394,200,000								$ 400,000,000
Long-term debt, interest rate							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							(8,300,000)	(8,300,000)
Notes 5 Point 75 Percent due 2053 [Member] | Fixed To Floating Interest Rate Swap [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Unamortized debt discount							0	0
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge							(4,800,000)	(4,800,000)
Fair Value Adjustment Of Debt							0	0
Other, payable in varying amounts through 2021
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, including current maturities							22,000,000	22,000,000	$ 19,200,000
Debt Instrument, Face Amount							22,000,000	22,000,000
Debt Issuance Costs, Net							$ 0	$ 0
Other, payable in varying amounts through 2021 | Minimum
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, interest rate							0.00%	0.00%	0.00%
Other, payable in varying amounts through 2021 | Maximum
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, interest rate							2.53%	2.53%	2.53%
Other, payable in varying amounts through 2021 | Fixed To Floating Interest Rate Swap [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Unamortized debt discount							$ 0	$ 0
Other, payable in varying amounts through 2021 | Fixedto Floating Interest Rate Swaps Terminated [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge							0	0
Fair Value Adjustment Of Debt							$ 0	$ 0
Notes paybable due 2022
Equity Unit Shares Issuable Upon Conversion [Abstract]
Unamortized debt discount									$ (300,000)
Notes 3 Point 4 Percent Due in 2021 [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Long-term debt, interest rate							3.40%	3.40%
Debt Issuance Costs, Net							$ (1,700,000)	$ (1,700,000)
Notes 3 Point 4 Percent Due in 2021 [Member] | Fixed To Floating Interest Rate Swap [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
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]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge							(17,100,000)	(17,100,000)
Fair Value Adjustment Of Debt							0	0
Notes Payable due 2022 [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Debt Instrument, Face Amount							754,300,000	754,300,000
Unamortized debt discount							(300,000)	(300,000)
Notes 7 Point 05 Percent Due in 2028 [Member] | Fixed To Floating Interest Rate Swap [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
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
Subsequent Event [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Commercial Paper Amount Outstanding											$ 600,000,000
Scenario, Forecast [Member] | London Interbank Offered Rate (LIBOR) [Member]
Equity Unit Shares Issuable Upon Conversion [Abstract]
Debt Instrument, Basis Spread on Variable Rate	4.304%
2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity												1,300,000,000
Equity Unit Shares Issuable Upon Conversion [Abstract]
Line of Credit Facility, Current Borrowing Capacity												$ 1,300,000,000