Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2011

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

Valuation and Qualifying Accounts

	Year Ending December 31,
	2011			2010			2009
	(In millions)
Allowance for Doubtful Accounts (shown as deduction from Accounts Receivable in the Consolidated Statements of Financial Position)
Balance at Beginning of Period	$	196		$	262		$	265
Additions:
Charged to costs and expenses	94			113			155
Charged to other accounts (1)	18			20			17
Deductions (2)	(146		)	(199		)	(175		)
Balance at End of Period	$	162		$	196		$	262

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(1) Collection of accounts previously written off.

(2) Uncollectible accounts written off.