CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Balance at End of Period	$ 8,557.8	$ 8,179.9
Retained Earnings [Member]
Balance at End of Period	7,548.5	6,793.5
Dividends to Stockholders, per common share	$ 0.130	$ 0.105
Common Stock
Balance at End of Period	$ 36.0	$ 35.9

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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