Debt and Banking Arrangements (Tables)

9 Months Ended

Sep. 30, 2011

Debt and Banking Arrangements [Abstract]

Letters of credit issued and loans outstanding under line of credit facilities

			Letters
	Expiration		of Credit		Loans
			(Millions)
$900 million unsecured credit facility (1)	June 3, 2016	$	-	$	-
$2 billion WPZ unsecured credit facility (2)	June 3, 2016		-		400
Bilateral bank agreements for letters of credit			89
		$	89	$	400

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• $700 million letter of credit capacity.
• $1.3 billion letter of credit capacity.