| **Basis of Presentation**                                                           | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
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| **Organization, Consolidation and Presentation of Financial Statements [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| Basis of Presentation                                                               | Basis of Presentation In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of (a) the consolidated profit for the three and six months ended June 30, 2013 and 2012, (b) the consolidated comprehensive income for the three and six months ended June 30, 2013 and 2012, (c) the consolidated financial position as of June 30, 2013 and December 31, 2012, (d) the consolidated changes in stockholder's equity for the six months ended June 30, 2013 and 2012 and (e) the consolidated cash flows for the six months ended June 30, 2013 and 2012.  The financial statements have been prepared in conformity with generally accepted accounting principles in the United States of America (U.S. GAAP) and pursuant to the rules and regulations of the Securities and Exchange Commission (SEC).  We have revised previously reported cash flows from operating and financing activities for the six month period ended June 30, 2012 to correct the treatment of interest payments on certain bank borrowings.  Cash provided by operating activities decreased from the amounts previously reported by $29 million for the six month period ended June 30, 2012, and cash provided by financing activities increased by the same amount.  Revisions will be made to previously reported amounts in future filings.  Cash provided by operating activities will decrease by $57 million and $53 million for the years ended December 31, 2012 and 2011, respectively, and the unaudited cash flows from operating activities will decrease by $44 million for the nine month period ended September 30, 2012.  Cash provided by financing activities will increase by the same amounts for the respective periods.  Management has concluded that the impact was not material to any quarterly or annual period.Interim results are not necessarily indicative of results for a full year.  The information included in this Form 10-Q should be read in conjunction with Management's Discussion and Analysis of Financial Condition and Results of Operations and the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2012.  The December 31, 2012 financial position data included herein was derived from the audited consolidated financial statements included in our annual report on Form 10-K for the year ended December 31, 2012, but does not include all disclosures required by U.S. GAAP.We consolidate all variable-interest entities (VIEs) where we are the primary beneficiary.  For VIEs, we assess whether we are the primary beneficiary as prescribed by the accounting guidance on the consolidation of VIEs.  The primary beneficiary of a VIE is the party that has the power to direct the activities that most significantly impact the performance of the entity and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the entity.  Please refer to Note 7 for more information. |

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The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.
+ References
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