Other Stock-Related Information (Stock Compensation Plans) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options	517,182,000	473,611,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 20.92	$ 20.02
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	327,525,000
Preferred Stock Shares Authorized	50us-gaap_PreferredStockSharesAuthorized	50us-gaap_PreferredStockSharesAuthorized
Approved By Shareowners [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options	500,948,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 20.92
Not Approved By Shareowners Consultants Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options	338,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 25.32
Plan 2007 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Shares Authorized Under Stock Option Years Until Expiration	28,200,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	299,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	230,000,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU's	14,896,000	13,572,000
Restricted Stock Units (RSUs) [Member] \| Approved By Shareowners [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU's	14,896,000
Restricted Stock Units (RSUs) [Member] \| Not Approved By Shareowners Consultants Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU's	0
Performance Share Units [Member] \| Approved By Shareowners [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU's	1,000,000
Maximum [Member] \| Plan 2007 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	925
Minimum [Member] \| Plan 2007 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	500

The number of years from the date that stock options are granted until they expire.

No definition available.

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- Definition

The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29

-Article 5

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)

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