Employee Benefit Plans Unearned Stock Based Compensation) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014
Unearned stock-based compensation estimated to be expensed related to unvested share-based payment awards
2014	$ 356
2015	341
2016	219
2017	110
2018	15
Total	$ 1,041

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Unearned stock-based compensation expense for year four, after remaining reporting year or operating cycle.

+ References

No definition available.

+ Details

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- Definition

Unearned stock-based compensation expense for year one, after remaining reporting year or operating cycle.

+ References

No definition available.

+ Details

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- Definition

Unearned stock-based compensation expense for year three, after remaining reporting year or operating cycle.

+ References

No definition available.

+ Details

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- Definition

Unearned stock-based compensation expense for year two, after remaining reporting year or operating cycle.

+ References

No definition available.

+ Details

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- Definition

Unearned Stock Based Compensation Remaining Reporting Year

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ 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 (i)

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

+ Details

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