v2.4.0.6

Short-Term Investments (Tables)

12 Months Ended

Dec. 31, 2011

Short-Term Investments [Abstract]

Components Of Short-Term Investments

	December 31,
	2011	2010
	(In millions)
Commercial paper	$     1,013	$           —
U.S. Treasuries	201	145
Other	289	—
Total	$     1,503	$        145

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- Definition

A table of investments, shown as a text block.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

+ Details

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Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

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- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Period Type:	duration