Incentive Compensation Plans Stock-based Compensation Awards (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended
Jun. 30, 2014
Incentive Compensation Plans
Incentive Compensation Plan Initiation Year	2014
Number of shares initially available for grants	28.8
Total target value of cash awards granted	$ 1.1
Restricted Cash Plan cash awards granted during the period target value	0.4
Cash awards vesting period	3 years
Stock settled awards
Incentive Compensation Plans
Granted awards	1.1
Weighted Average Grant Date Fair Value	$ 17.67
Performance based awards
Incentive Compensation Plans
Granted awards	3.5
Weighted Average Grant Date Fair Value	$ 16.55
Stock Compensation Plan
Incentive Compensation Plans
Granted awards	4.6
2009 PIP
Incentive Compensation Plans
Incentive Compensation Plan Initiation Year	2009
Total target value of cash awards granted	31.3
Restricted Cash Plan cash awards granted during the period target value	$ 4.8

Target value of all cash awards granted during the period (settled in shares or cash)

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- Definition

Incentive Compensation Plan Initiation Year

+ References

No definition available.

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- Definition

Restricted Cash Plan - cash awards granted during the period target value

+ References

No definition available.

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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)(1)

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

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- Definition

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).

+ 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)(iii)(1)

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

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- Definition

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).

+ 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)(iii)(1)

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

+ Details

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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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