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Restructuring Costs (Schedule Of The Activity And Balances Associated With Restructuring Liabilities) (Details) (USD $) In Millions, unless otherwise specified |  |  |  |  |  |  |  |  |  |  |  |  | 9 Months Ended
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Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Dec. 31, 2012 | Sep. 30, 2014 Other Current Liabilities [Member] | Dec. 31, 2013 Other Current Liabilities [Member] | Sep. 30, 2013 Other Current Liabilities [Member] | Dec. 31, 2012 Other Current Liabilities [Member] | Sep. 30, 2014 Other Long-Term Liabilities [Member] | Dec. 31, 2013 Other Long-Term Liabilities [Member] | Sep. 30, 2013 Other Long-Term Liabilities [Member] | Dec. 31, 2012 Other Long-Term Liabilities [Member] | Sep. 30, 2014 Canada Divestiture [Member] | Sep. 30, 2014 Canada Divestiture [Member] Other Current Liabilities [Member] | Sep. 30, 2014 Canada Divestiture [Member] Other Long-Term Liabilities [Member] | Sep. 30, 2014 Office Consolidation [Member] | Sep. 30, 2013 Office Consolidation [Member] | Sep. 30, 2014 Office Consolidation [Member] Other Current Liabilities [Member] | Sep. 30, 2013 Office Consolidation [Member] Other Current Liabilities [Member] | Sep. 30, 2014 Office Consolidation [Member] Other Long-Term Liabilities [Member] | Sep. 30, 2013 Office Consolidation [Member] Other Long-Term Liabilities [Member] | Sep. 30, 2014 Offshore Divestiture [Member] | Sep. 30, 2013 Offshore Divestiture [Member] | Sep. 30, 2014 Offshore Divestiture [Member] Other Current Liabilities [Member] | Sep. 30, 2013 Offshore Divestiture [Member] Other Current Liabilities [Member] | Sep. 30, 2014 Offshore Divestiture [Member] Other Long-Term Liabilities [Member] | Sep. 30, 2013 Offshore Divestiture [Member] Other Long-Term Liabilities [Member]
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ 23 | $ 45 | $ 53 | $ 61 | $ 5 | $ 27 | $ 34 | $ 52 | $ 18 | $ 18 | $ 19 | $ 9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring reserve activity |  |  |  |  |  |  |  |  |  |  |  |  | 4 | 2 | 2 | (23) | (5) | (22) | (16) | (1) | 11 | (3) | (3) | (2) | (2) | (1) | (1)
Ending balance | $ 23 | $ 45 | $ 53 | $ 61 | $ 5 | $ 27 | $ 34 | $ 52 | $ 18 | $ 18 | $ 19 | $ 9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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- Definition Net total Increase or Decrease in the accrual for restructuring costs during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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