XML 36 R56.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Other Income and Expense (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Component Of Other Income [Line Items] |  |  |  |
Total other income | $ 15 | $ 34 | $ 33 | $ 50
Component Of Operating Other Cost And Expense [Line Items] |  |  |  |
Total other expense | 15 | 35 | 44 | 50
Loss On Sale And Disposal Of Assets [Member] |  |  |  |
Component Of Operating Other Cost And Expense [Line Items] |  |  |  |
Total other expense | 11 | 16 | 35 | 26
Loss On Extinguishment Of Debt [Member] |  |  |  |
Component Of Operating Other Cost And Expense [Line Items] |  |  |  |
Total other expense | 0 | 15 | 0 | 15
Other Member |  |  |  |
Component Of Operating Other Cost And Expense [Line Items] |  |  |  |
Total other expense | 4 | 4 | 9 | 9
Gain on sale of assets |  |  |  |
Component Of Other Income [Line Items] |  |  |  |
Total other income | 1 | 14 | 3 | 16
Other |  |  |  |
Component Of Other Income [Line Items] |  |  |  |
Total other income | $ 14 | $ 20 | $ 30 | $ 34

X
- Details
Name: | us-gaap_ComponentOfOperatingOtherCostAndExpenseLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ComponentOfOtherIncomeNonoperatingLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents a sum total of expenses not separately reflected on the income statement for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4,6) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
Name: | us-gaap_OtherExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 7 -Section 04 -Paragraph 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.4) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 + Details
Name: | us-gaap_OtherIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration