Valuation and Qualifying Accounts (Notes)

12 Months Ended

Dec. 31, 2013

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

Valuation and Qualifying Accounts

	Year Ending December 31,
	2013			2012			2011
	(In millions)
Allowance for Doubtful Accounts (shown as deduction from Accounts Receivable in the Consolidated Statements of Financial Position)
Balance at Beginning of Period	$	62		$	162		$	196
Additions:
Charged to costs and expenses	94			79			94
Charged to other accounts (a)	23			16			18
Deductions (b)	(124		)	(195		)	(146		)
Balance at End of Period	$	55		$	62		$	162

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(a) Collection of accounts previously written off.

(b) Uncollectible accounts written off.