Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended	12 Months Ended
Dec. 31, 2012	Sep. 30, 2014	Nov. 07, 2013	Jun. 19, 2012
Accelerated Share Repurchases, Settlement (Payment) or Receipt (in Dollars)			$ 200.00	$ 400.00
Incremental Common Shares Attributable to Accelerated Share Repurchase Agreements	30.3	11.6
Accelerated Share Repurchases, Final Price Paid Per Share (in dollars per share)	$ 13.22	$ 17.22

Final price paid per share for the purchase of the targeted number of shares, determined by an average market price over a fixed period of time.

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- Definition

Amount of cash receipt from (payment to) bank; or stock received from (issuance to) bank in the settlement of the accelerated share repurchase agreement.

+ References

+ Details

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of accelerated share repurchase agreements. An accelerated share repurchase program is a combination of transactions that permits an entity to purchase a targeted number of shares immediately with the final purchase price of those shares determined by an average market price over a fixed period of time.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 25

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 45

-Paragraph 22

-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1707-109256

+ Details

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