CAPITAL STOCK - Additional Information (Detail) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended	101 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015
Equity, Class of Treasury Stock [Line Items]
Share repurchase program	$ 1,000,000,000		$ 1,000,000,000
Repurchase of shares of common stock	2.0
Aggregate cost of repurchase	(80,000,000)
Number of shares repurchased under settlement of employee tax withholding obligations	0.1	0.1
Shares repurchased aggregate value under settlement of employee tax withholding obligations	3,600,000	4,800,000
2006 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of shares of common stock			18.4
Aggregate cost of repurchase			$ (759,300,000)

Number of shares repurchased under settlement of employee tax withholding obligations.

No definition available.

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- Definition

Shares repurchased aggregate value under settlement of employee tax withholding obligations.

+ References

No definition available.

+ Details

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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