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Consolidated Statements of Equity (Parentheticals) (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Retained Earnings
Dividends declared on common stock (Per share)	$ 0.89	$ 0.65
Noncontrolling Interests [Abstract]
Noncash capital contributions	$ 97	$ 0

The value of the noncash (or part noncash) consideration received in a transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of a transaction not resulting in cash receipts or cash payments in the period.

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