| **Property, Plant and Equipment (Tables)**   | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
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| **Property, Plant and Equipment [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Components of property, plant and equipment  | Property, plant and equipment, net is as follows:($ in thousands)  September 30, 2012    December 31, 2011                      Property, plant and equipment  $ 14,133,935    $13,638,136    Less: Accumulated depreciation    (6,651,035)    (6,090,613)  Property, plant and equipment, net  $7,482,900    $7,547,523                        |

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| - Definition
Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682
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