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Debt (Tables)

9 Months Ended

Sep. 30, 2013

Debt Disclosure [Abstract]

Outstanding letters of credit under committed lines of credit

We had outstanding letters of credit under our committed lines of credit as follows (in millions):

								Amounts Outstanding
		Borrowing Capacity				Expiration		September 30, 2013				December 31, 2012
Letter of credit facilities		$	550			June 2014		$	292			$	418
Revolver		$	3,000			December 2016		$	59			$	59
Canadian revolving credit facility		C$	50			November 2013		C$	10			C$	10

Changes in accounts receivable sales facility

Changes in the amounts outstanding under our accounts receivable sales facility were as follows (in millions):

	Nine Months Ended September 30,
	2013				2012
Balance as of beginning of period	$	100			$	250
Proceeds from the sale of receivables	—				1,500
Repayments	—				(1,650		)
Balance as of end of period	$	100			$	100

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- Definition

Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(e),(f))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

-Article 4



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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- Definition

Tabular disclosure of the changes in carrying amount of the accounts receivable sales facility.

+ References

No definition available.

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