Income Taxes Income Taxes - Estimated Potential Changes to Unrecognized Tax Benefits (Details 3) (USD $)	Mar. 05, 2015
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Estimated potential reduction in our unrecognized tax benefits in the next 12 months, lower bound	$ 0
Estimated potential reduction in our unrecognized tax benefits in the next 12 months, upper bound	$ 65,000,000

Amount of (increase) decrease reasonably possible in the estimated lower bound of the unrecognized tax benefit for a tax position taken or expected to be taken.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Name:	us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeLowerBound
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant