Basis Of Presentation (Details) (USD $) In Millions	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	12 Months Ended
Sep. 30, 2011	Sep. 30, 2011 Successor [Member]	Sep. 30, 2011 Successor [Member]	Mar. 31, 2011 Predecessor [Member]	Sep. 30, 2010 Predecessor [Member]	Sep. 30, 2010 Predecessor [Member]	Sep. 30, 2010 Predecessor [Member] Reclassified Expense Amounts [Member]	Sep. 30, 2010 Predecessor [Member] Selling, General And Administrative [Member]	Dec. 31, 2010 Predecessor [Member] Accrued Expenses And Other Current Liabilities [Member]	Dec. 31, 2010 Predecessor [Member] Accounts Payable [Member]	Dec. 31, 2010 Predecessor [Member] Benefit Plan Obligation [Member]	Dec. 31, 2010 Predecessor [Member] Other Deferred Credit [Member]	Dec. 31, 2010 Predecessor [Member] Property, Plant and Equipment [Member]	Dec. 31, 2010 Predecessor [Member] Software [Member]
Prior period reclassification adjustment amount								$ 306	$ 241	$ 232	$ 109	$ 118	$ 63	$ 59
Noncash dividends	99
Selling, General and Administrative Expense		$ 525	$ 1,181	$ 556	$ 600	$ 1,839	$ 912

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Chapter 4

-Paragraph 5A

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 4

Reference 3: 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)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6386349&loc=d3e3636-108311

Name:	us-gaap_SellingGeneralAndAdministrativeExpense
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration