| **Income Taxes - (Tables)**                                                         | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
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| **Income Tax Disclosure [Abstract]**                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| Provision for income taxes                                                          | The provision for income taxes is comprised of the following for the years ended December 31: 2014 2013 2012Current:     U.S.$365 $159 $251Foreign601 452 528Total current966 611 779Deferred:     U.S.(52) (54) (57)Foreign(18) 55 (57)Total deferred(70) 1 (114)Provision for income taxes$896 $612 $665                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| Geographic sources of income before income taxes                                    | The geographic sources of income before income taxes are as follows for the years ended December 31: 2014 2013 2012U.S.$920 $512 $700Foreign1,707 1,203 1,282Income before income taxes$2,627 $1,715 $1,982                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Difference between provision and U.S. statutory tax rate                            | The provision for income taxes differs from the amount computed by applying the U.S. statutory income tax rate to income before income taxes for the reasons set forth below for the years ended December 31: 2014 2013 2012U.S. statutory income tax rate35.0 % 35.0 % 35.0 %Effect of foreign operations(5.3) (8.7) (2.0)Change in valuation allowances related to foreign losses4.0 8.9 0.9Adjustments of prior years’ tax positions1.2 0.9 (2.9)State income taxes - net of U.S. tax benefit0.9 0.8 1.8Impact of reorganization of certain foreign subsidiaries— (1.0) —Other - net(1.7) (0.2) 0.8Total effective tax rate34.1 % 35.7 % 33.6 %                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| Deferred tax assets and liabilities                                                 | The tax effects of our temporary differences and carryforwards are as follows at December 31: 2014 2013Deferred tax assets:   Receivables$65 $68Inventory376 347Employee benefits106 98Other accrued expenses173 185Operating loss carryforwards493 403Tax credit carryforwards481 462Other104 70Subtotal1,798 1,633Valuation allowances(1,051) (949)Total747 684Deferred tax liabilities:   Goodwill and other intangibles334 356Property459 459Undistributed earnings of foreign subsidiaries26 14Other16 24Total835 853Net deferred tax liability$(88) $(169)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Rollforward of unrecognized tax benefits and associated interest and penalties      | The following table presents the changes in our gross unrecognized tax benefits and associated interest and penalties included in the consolidated balance sheets. Gross Unrecognized TaxBenefits, ExcludingInterest and Penalties Interest andPenalties Total GrossUnrecognized TaxBenefitsBalance at December 31, 2011 $283  $96  $379 Decrease in prior year tax positions (18)  (5)  (23) Increase in current year tax positions 6  1  7 Decrease related to settlements with taxing authorities (34)  (9)  (43) Decrease related to lapse of statute of limitations (38)  (9)  (47) Decrease due to effects of foreign currency translation (3)  (3)  (6) Balance at December 31, 2012 196  71  267Increase (decrease) in prior year tax positions 20  (2)  18 Increase in current year tax positions 44  1  45 Decrease related to settlements with taxing authorities (15)  (4)  (19) Decrease related to lapse of statute of limitations (17)  (10)  (27) Decrease due to effects of foreign currency translation —  (2)  (2) Balance at December 31, 2013 228  54  282(Decrease) increase in prior year tax positions (7)  1  (6) Increase in current year tax positions 39  2  41 Decrease related to settlements with taxing authorities (5)  (1)  (6) Decrease related to lapse of statute of limitations (6)  (3)  (9) Decrease due to effects of foreign currency translation (7)  (4)  (11) Balance at December 31, 2014 $242  $49  $291 |
| Earliest tax years that remain subject to examination by major taxing jurisdictions | The following table summarizes the earliest tax years that remain subject to examination by the major taxing jurisdictions in which we operate.  These jurisdictions are those we project to have the highest tax liability for 2015.Jurisdiction Earliest Open Tax Period Jurisdiction Earliest Open Tax PeriodEcuador 2011 Norway 2004Germany 2009 Saudi Arabia 2003Netherlands 2008 U.S. 2010                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |

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| - Definition
Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.
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| - Definition
Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.
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| - Definition
Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.
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| - Definition
Tabular disclosure of income before income tax between domestic and foreign jurisdictions.
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| - Definition
Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.
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| - Definition
Tabular disclosure of income tax examinations that an enterprise is currently subject to or that have been completed in the current period typically including a description of the examination, the jurisdiction conducting the examination, the tax year(s) under examination, the likelihood of an unfavorable settlement, the range of possible losses, the liability recorded, the increase or decrease in the liability from the prior period, and any penalties and interest that have been recorded.
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