LONG-TERM DEBT AND FINANCING ARRANGEMENTS - Additional Information (Detail) (USD $)	1 Months Ended			2 Months Ended	12 Months Ended			13 Months Ended	2 Months Ended	0 Months Ended		1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2010	Aug. 31, 2012	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Jun. 30, 2015	Sep. 29, 2012	Jan. 24, 2014	Dec. 24, 2013	Nov. 30, 2012	Jul. 31, 2012 deferral_period	May 30, 2012	Jan. 01, 2011	Nov. 03, 2010	Dec. 31, 2018	Sep. 27, 2014
Debt Instrument [Line Items]
Principal amount of long-term debt maturing in year one					$ 5,600,000
Principal amount of long-term debt maturing in year two					4,900,000
Principal amount of long-term debt maturing in year three					4,200,000
Principal amount of long-term debt maturing in year four					980,800,000
Principal amount of long-term debt maturing in year five					4,800,000
Principal amount of long-term debt maturing after year five					2,865,200,000
Debt, fair value adjustment					1,700,000
Fair value adjustment and unamortized gain termination of swap					34,100,000
Interest paid					181,500,000	172,600,000	166,900,000
Repayments of Long-term Debt					46,600,000	302,200,000	1,422,300,000
Long-term debt, face amount														320,000,000
Long-term debt, interest rate															4.25%
Proceeds from debt issuance					0	726,700,000	1,523,500,000
Payments of debt extinguishment costs	45,300,000			91,000,000	0	42,800,000	91,000,000
additional deposit made to trustee for debt repayment					9,000,000	9,000,000
(Gain) loss on debt extinguishment		42,800,000		45,500,000	(100,000)	20,600,000	45,500,000
Amortization of Debt Discount (Premium)					300,000
Unrealized Gain (Loss) on Derivatives		8,100,000		10,500,000
Conversion of convertible securities (in shares)							640,018
Market value of common stock (USD per share)							$ 73.24
Conversion of convertible securities, aggregate effect on common shares (in shares)							754
Long-term debt, including current maturities					3,845,700,000	3,809,300,000
Commercial Paper and Credit Facilities [Abstract]
Commercial paper program, total amount					2,000,000,000
Line of credit borrowing capacity					2,700,000,000
Short-term Debt, Terms								364 day
Short-term credit lines					1,600,000	392,700,000
Commercial Paper Amount Outstanding						368,000,000
Equity Unit Shares Issuable Upon Conversion						6,100,000
Common Stock, Par or Stated Value Per Share					$ 2.5	$ 2.5
Convertible Preferred Units [Abstract]
Convertible Preferred Stock Shares Issuable Upon Conversion						6,325,000
Preferred stock dividend rate			4.75%
Interest rate for the first five years of debt			5.902%
Improve the funded status of the U.S pension obligations			150,000,000
Call option, aggregate premium		9,700,000	50,300,000			50,300,000
Convertible preferred stock terms of conversion, percentage						85.00%
Convertible preferred stock terms of conversion, due to fundamental change, percentage						100.00%
Purchase contracts, annual contract adjustment payment					4.00%	0.50%
Present value of the contract adjustment payments			14,900,000		27,300,000	40,200,000
Accretion expense					600,000	900,000
Liabilities for Guarantees on Long-Duration Contracts, Other Liability Adjustments					3,000,000
Unamortized deferred issuance cost of notes						3,300,000
Leverage ratio						6.0
Interest expense recorded					177,200,000	160,100,000	144,000,000
Adjusted strike price (USD per share)					$ 112.86
Stock Exercise Price Per Share Percentage Greater Than Closing Price					40.00%											60.00%
Common Stock, Shares, Issued					176,902,738	176,902,738
Proceeds from Issuance of Subordinated Long-term Debt					345,000,000
Common Stock
Debt Instrument [Line Items]
Conversion price (USD per share)					$ 98.75
Commercial Paper and Credit Facilities [Abstract]
Equity Units Conversion Rate Number Of Common Stock Shares					1.0126
Convertible Preferred Units
Debt Instrument [Line Items]
Conversion price (USD per share)			$ 75.00			$ 73.08									75.00
Convertible Preferred Units [Abstract]
Preferred stock dividend rate						4.75%
Convertible preferred stock, liquidation preference						$ 100
Convertible preferred stock, conversion rate (USD per share)			1.3333			1.3684									1.3333
Convertible preferred stock, redemption price as a percent of liquidation preference			100.00%			100.00%
Observation period for price of common stock						20 days
BondHedge
Debt Instrument [Line Items]
Conversion of convertible securities (in shares)							640,772
Maximum
Convertible Preferred Units [Abstract]
Adjusted strike price (USD per share)			$ 97.95		$ 112.91	$ 95.44
Common Stock, Shares, Issued					4.3	4.3
Maximum | Convertible Preferred Units
Convertible Preferred Units [Abstract]
Convertible preferred stock, conversion rate (USD per share)					1.2399	1.2399
Minimum
Convertible Preferred Units [Abstract]
Adjusted strike price (USD per share)			$ 75.00		$ 98.80	$ 73.08
Common Stock, Shares, Issued					3.5	3.5
Minimum | Common Stock
Commercial Paper and Credit Facilities [Abstract]
Equity Units Conversion Rate Number Of Common Stock Shares					1.0122	1.0122
Purchase accounting FV adjustments
Debt Instrument [Line Items]
(Gain) loss on debt extinguishment		(11,900,000)		(35,000,000)
Gain (Loss) on Derivative [Domain]
Debt Instrument [Line Items]
(Gain) loss on debt extinguishment						(2,200,000)
New Credit Facility
Commercial Paper and Credit Facilities [Abstract]
Line of Credit Facility, Current Borrowing Capacity						1,500,000,000
Committed Credit Facility
Commercial Paper and Credit Facilities [Abstract]
Line of credit borrowing capacity						1,200,000,000
Line of credit facility, commited borrowing capacity					500,000,000
Line of credit, foreign currency sublimit						400,000,000
Line of Credit
Commercial Paper and Credit Facilities [Abstract]
Line of credit borrowing capacity					670,500,000
Line of credit facility, available borrowing capacity					568,200,000
Short-term credit lines					1,600,000
Weighted average interest rates on short-term borrowings					0.20%	0.30%
Letter of Credit [Member]
Commercial Paper and Credit Facilities [Abstract]
Short-term credit lines					102,300,000
Number of stock warrants
Debt Instrument [Line Items]
Antidilutive securities excluded from the computation of EPS (in shares)					0	0	3,419,000		4,938,624
senior notes due 2016 [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt										342,800,000	351,800,000
Notes payable due 2022
Debt Instrument [Line Items]
Long-term debt, face amount					45,700,000							800,000,000
Long-term debt, interest rate					2.90%	2.90%						2.90%
Proceeds from debt issuance												793,900,000
Unamortized debt discount												700,000
Debt issuance costs												5,400,000
Long-term debt, repurchase price as a percent of principal amount												101.00%
Long-term debt, including current maturities					753,800,000	799,400,000
Notes paybable due 2022
Debt Instrument [Line Items]
Unamortized debt discount					500,000
Notes payable due 2013
Debt Instrument [Line Items]
Long-term debt, face amount				250,000,000
Long-term debt, interest rate				6.15%
Notes payable due 2014
Debt Instrument [Line Items]
Long-term debt, face amount				350,000,000
Long-term debt, interest rate				8.95%
Notes payable due 2014
Debt Instrument [Line Items]
Long-term debt, face amount				300,000,000
Long-term debt, interest rate				4.75%
Notes payable due 2052 (junior subordinated)
Debt Instrument [Line Items]
Long-term debt, interest rate					5.75%	5.75%							5.75%
Proceeds from debt issuance													729,400,000
Debt issuance costs													20,600,000
Junior subordinated notes													750,000,000
Number of consecutive deferral periods													5
Threshold percentage of principal plus accrued interest for redemption													100.00%
Long-term debt, including current maturities					750,000,000	750,000,000
Convertible notes payable due in 2012
Debt Instrument [Line Items]
Conversion rate of convertible notes based on common shares (USD per $1,000 note)							15.6666
Conversion price (USD per share)							$ 63.83
Convertible Preferred Units [Abstract]
Principal amount denominator							1,000,000
Notes payable due 2021
Debt Instrument [Line Items]
Fair value adjustment and unamortized gain termination of swap					8,500,000
Long-term debt, interest rate					3.40%	3.40%
Unamortized debt discount					300,000
Long-term debt, including current maturities					403,900,000	382,200,000
Notes payable due 2021 | Fixed to Floating Interest Rate Swap
Debt Instrument [Line Items]
Long-term debt, face amount					400,000,000
Notes payable due 2021 | Fixedto Floating Interest Rate Swaps Terminated [Member]
Debt Instrument [Line Items]
Fair value adjustment and unamortized gain termination of swap					(12,700,000)
Notes payable due 2016
Debt Instrument [Line Items]
Long-term debt, face amount						300,000,000
Long-term debt, interest rate						5.75%
Notes 5 Point 75 Percent due 2053 [Member]
Debt Instrument [Line Items]
Notes Payable, Noncurrent					400,000,000
Long-term debt, interest rate					5.75%	5.75%											4.304%
Proceeds from debt issuance		392,000,000
Debt issuance costs		8,000,000
Long-term debt, repurchase price as a percent of principal amount					100.00%
Long-term debt, including current maturities					398,700,000	400,000,000
Notes 5 Point 75 Percent due 2053 [Member] | Fixed to Floating Interest Rate Swap
Debt Instrument [Line Items]
Fair value adjustment and unamortized gain termination of swap																		1,300,000
Notes payable due 2028
Debt Instrument [Line Items]
Long-term debt, interest rate					7.05%	7.05%
Long-term debt, including current maturities					166,000,000	147,700,000
Notes payable due 2028 | Fixed to Floating Interest Rate Swap
Debt Instrument [Line Items]
Fair value adjustment and unamortized gain termination of swap					(14,300,000)
Long-term debt, face amount					150,000,000
Notes 5 Point 20 Percent Due 2040 [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate					5.20%	5.20%
Unamortized debt discount					200,000
Long-term debt, including current maturities					362,100,000	317,400,000
Notes 5 Point 20 Percent Due 2040 [Member] | Fixed to Floating Interest Rate Swap
Debt Instrument [Line Items]
Long-term debt, face amount					400,000,000
Notes Payable Maturities 2040 [Domain] | Fixed to Floating Interest Rate Swap
Debt Instrument [Line Items]
Fair value adjustment and unamortized gain termination of swap					37,700,000
Notes payable due in 2018 (junior subordinated)
Debt Instrument [Line Items]
Proceeds from debt issuance			613,500,000
Convertible Preferred Units [Abstract]
Convertible Preferred Stock Shares Issuable Upon Conversion			6,325,000
Preferred stock units, stated amount			$ 100
Conversion premium for convertible notes			10.00%
Principal amount denominator			1,000
Share purchase requirement			1
Notes 2 Point 25 Percent due 2018 [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate					2.25%	2.25%
Proceeds from debt issuance		334,700,000			334,700,000
Long-term debt, including current maturities					345,000,000	345,000,000
Commercial Paper and Credit Facilities [Abstract]
Equity Unit Shares Issuable Upon Conversion		3,450,000
Common Stock, Par or Stated Value Per Share					$ 100	$ 100
Convertible Preferred Units [Abstract]
Conversion premium for convertible notes						10.00%
Principal amount denominator						1,000
Interest expense recorded					7,800,000	700,000
Notes payable due 2045 (subordinated)
Convertible Preferred Units [Abstract]
Repayments of subordinated debt			312,700,000
Convertible notes payable due in 2018 (subordinated)
Debt Instrument [Line Items]
Long-term debt, face amount															632,500,000
Long-term debt, interest rate					4.25%	4.25%									4.25%
Proceeds from debt issuance						632,500,000
Long-term debt, including current maturities			632,500,000		632,500,000	632,500,000
Convertible Preferred Units [Abstract]
Convertible Preferred Stock Shares Issuable Upon Conversion					6,100,000.0
Duration of notice for remarketing event						15 days
Settlement period after trigger event						25 days
Business days for remarketing period						5 days
Interest expense recorded					26,900,000
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term debt, including current maturities					33,700,000	35,100,000
Notes Payable, Other Payables [Member] | Maximum
Debt Instrument [Line Items]
Long-term debt, interest rate					6.62%	6.62%
Notes Payable, Other Payables [Member] | Minimum
Debt Instrument [Line Items]
Long-term debt, interest rate					0.00%	0.00%
Cash and Cash Equivalents [Member]
Debt Instrument [Line Items]
Payments of debt extinguishment costs						$ 51,800,000