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Receivables (Tables) | 12 Months Ended
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Dec. 31, 2011
Receivables [Abstract] |
Schedule Of Allowance For Doubtful Accounts |
|  | Customer receivables |  |  | Other receivables |
December 31, |  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
Balance at beginning of year |  | $ | 46 |  |  | $ | 72 |  |  | $ | 87 |  |  | $ | 90 |
Provision for doubtful accounts |  |  | 19 |  |  |  | (8 | ) |  |  | 7 |  |  |  | 1 |
Write off of uncollectible accounts |  |  | (14 | ) |  |  | (10 | ) |  |  | (3 | ) |  |  | (1 | )
Recoveries of prior write-offs |  |  | (3 | ) |  |  | (4 | ) |  |  | (5 | ) |  |  | (3 | )
Other |  |  | (2 | ) |  |  | (4 | ) |  |  | (7 | ) |  |  | - |
Balance at end of year |  | $ | 46 |  |  | $ | 46 |  |  | $ | 79 |  |  | $ | 87 |

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- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 + Details
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- Details
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