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Share-Based Compensation Summary of Restricted Stock Performance Units Activity (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding at January 1	1,771,664,000		1,817,745,000		1,478,000,000
Granted	331,053,000		394,928,000		575,694,000
Vested (a)	(605,458,000)	[1]	(429,034,000)	[1]	(229,979,000)	[1]
Forfeitures	(33,565,000)		(11,975,000)		(5,970,000)
Shares outstanding at December 31	1,463,694,000		1,771,664,000		1,817,745,000
Weighted average grant-date fair value of outstanding shares at January 1	$ 23.44		$ 22.37		$ 20.70
Weighted average grant-date fair value of shares granted	$ 51.99		$ 27.46		$ 27.80
Weighted average grant-date fair value of shares vested (a)	$ 19.54	[1]	$ 22.66	[1]	$ 25.29	[1]
Weighted average grant-date fair value of share forfeitures	$ 24.76		$ 21.46		$ 22.45
Weighted average grant-date fair value of outstanding shares at December 31	$ 31.48		$ 23.44		$ 22.37
Fair value of awards vested	$ 29.5		$ 12.4		$ 6.1
Performance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	70,600
Weighted average grant-date fair value of shares granted	$ 47.83
[1] The total fair value of awards upon vesting for the years ended December 31, 2013, 2012, and 2011, was $29.5 million, $12.4 million, and $6.1 million, respectively.

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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