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Debt (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Debt Disclosure [Abstract] |
Schedule of Long-term Debt |
|  |  |  |  | (In Millions) |
|  | At December 31 |
|  | 2012 |  |  | 2011 |
Notes and debentures: |  |  |  |  |  |  |  |
5.875%, due July 15, 2012 |  | $ | — |  |  | $ | 791 |
7.125%, due Aug. 15, 2013 |  |  | 200 |  |  |  | 200 |
4.8 %, due June 15, 2015 |  |  | 500 |  |  |  | 500 |
6.125%, due Oct. 3, 2016 |  |  | 1,000 |  |  |  | 1,000 |
5.85 %, due Mar. 15, 2017 |  |  | 300 |  |  |  | 300 |
6.625%, due Apr. 15, 2018 |  |  | 114 |  |  |  | 114 |
7.125%, due Mar. 15, 2020 |  |  | 500 |  |  |  | 500 |
5.95 %, due March 15, 2022 |  |  | 400 |  |  |  | — |
7.75 %, due Aug. 1, 2029 |  |  | 296 |  |  |  | 296 |
6.5 %, due Aug. 15, 2032 |  |  | 300 |  |  |  | 300 |
Other |  |  | 18 |  |  |  | 24 |
|  |  | 3,628 |  |  |  | 4,025 |
Less: Current portion |  |  | 206 |  |  |  | 803 |
Total Long-term debt |  | $ | 3,422 |  |  | $ | 3,222 |

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 + Details
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