Share-Based Payments (Details 2)	6 Months Ended
Jun. 30, 2014	Jun. 30, 2013
Market stock units
Schedule of stock option grants
Stock units	222,000	257,000
Cash settled performance shares
Schedule of stock option grants
Stock units	180,000	271,000
Performance units
Schedule of stock option grants
Stock units	50,000	0
Time-vested restricted stock units
Schedule of stock option grants
Stock units	418,000	680,000

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).

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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration