FAIR VALUE OF FINANCIAL INSTRUMENTS (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013
Derivative [Line Items]
Notional Amount of Interest Rate Fair Value Hedge Derivatives	$ 400
Senior Notes Four Twenty Four [Member]
Derivative [Line Items]
Derivative, Inception Date	Jan. 03, 2012
Notional Amount of Interest Rate Fair Value Hedge Derivatives	200
Derivative, Basis Spread on Variable Rate	2.02%
Debt Instrument, Maturity Date	Dec. 01, 2026
Debt Instrument, Interest Rate, Stated Percentage	4.24%
Debt Instrument, Face Amount	200
Senior Notes Three Eighty Four [Member]
Derivative [Line Items]
Derivative, Inception Date	Jan. 03, 2012
Notional Amount of Interest Rate Fair Value Hedge Derivatives	25
Derivative, Basis Spread on Variable Rate	1.90%
Debt Instrument, Maturity Date	Dec. 01, 2021
Debt Instrument, Interest Rate, Stated Percentage	3.84%
Debt Instrument, Face Amount	100
Senior Notes Three Eighty Five [Member]
Derivative [Line Items]
Derivative, Inception Date	Mar. 06, 2013
Notional Amount of Interest Rate Fair Value Hedge Derivatives	100
Derivative, Basis Spread on Variable Rate	1.77%
Debt Instrument, Interest Rate, Stated Percentage	3.85%
Debt Instrument, Face Amount	100
Senior Notes Four Zero Five [Member]
Derivative [Line Items]
Derivative, Inception Date	Mar. 06, 2013
Notional Amount of Interest Rate Fair Value Hedge Derivatives	75
Derivative, Basis Spread on Variable Rate	1.73%
Debt Instrument, Interest Rate, Stated Percentage	4.05%
Debt Instrument, Face Amount	$ 75

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Interest rate stated in the contractual debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Balance Type:	na
Period Type:	duration

- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date the entity entered into the derivative contract, in CCYY-MM-DD format.

+ References

No definition available.

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Balance Type:	na
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- Details

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Balance Type:	na
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- Definition

Aggregate notional amount of all interest rate derivatives designated as hedging instruments in fair value hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant