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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2013
Accounting Policies [Abstract] |
Goodwill is Identified by Segment | Goodwill is identified by segment as follows (in millions):
|  | Rig Systems |  |  | Rig Aftermarket |  |  | Wellbore Technologies |  |  | Completion & Production Solutions |  |  | Discontinued Operations |  |  | Total |
Balance at December 31, 2011 |  | $ | 943 |  |  | $ | 556 |  |  | $ | 3,683 |  |  | $ | 917 |  |  | $ | 52 |  |  | $ | 6,151 |
Goodwill acquired during period |  |  | 145 |  |  |  | 89 |  |  |  | 80 |  |  |  | 395 |  |  |  | 291 |  |  |  | 1,000 |
Currency translation adjustments and other |  |  | 9 |  |  |  | 4 |  |  |  | 6 |  |  |  | 2 |  |  |  | — |  |  |  | 21 |
Balance at December 31, 2012 |  | $ | 1,097 |  |  | $ | 649 |  |  | $ | 3,769 |  |  | $ | 1,314 |  |  | $ | 343 |  |  | $ | 7,172 |
Goodwill acquired during the period |  |  | 179 |  |  |  | 256 |  |  |  | 665 |  |  |  | 803 |  |  |  | — |  |  |  | 1,903 |
Currency translation adjustments and other |  |  | 3 |  |  |  | 1 |  |  |  | (9 | ) |  |  | (11 | ) |  |  | (10 | ) |  |  | (26 | )
Balance at December 31, 2013 |  | $ | 1,279 |  |  | $ | 906 |  |  | $ | 4,425 |  |  | $ | 2,106 |  |  | $ | 333 |  |  | $ | 9,049 |
Identified Intangible Assets Identified by Segment | The net book values of identified intangible assets are identified by segment as follows (in millions):
|  | Rig Systems |  |  | Rig Aftermarket |  |  | Wellbore Technologies |  |  | Completion & Production Solutions |  |  | Discontinued Operations |  |  | Total |
Balance at December 31, 2011 |  | $ | 56 |  |  | $ | 92 |  |  | $ | 3,134 |  |  | $ | 771 |  |  | $ | 20 |  |  | $ | 4,073 |
Additions to intangible assets |  |  | 18 |  |  |  | — |  |  |  | 8 |  |  |  | 897 |  |  |  | 58 |  |  |  | 981 |
Amortization |  |  | (14 | ) |  |  | (3 | ) |  |  | (203 | ) |  |  | (81 | ) |  |  | (4 | ) |  |  | (305 | )
Currency translation adjustments and other |  |  | 2 |  |  |  | — |  |  |  | 3 |  |  |  | (11 | ) |  |  | — |  |  |  | (6 | )
Balance at December 31, 2012 |  | $ | 62 |  |  | $ | 89 |  |  | $ | 2,942 |  |  | $ | 1,576 |  |  | $ | 74 |  |  | $ | 4,743 |
Additions to intangible assets |  |  | 190 |  |  |  | 59 |  |  |  | 286 |  |  |  | 161 |  |  |  | — |  |  |  | 696 |
Amortization |  |  | (21 | ) |  |  | (6 | ) |  |  | (217 | ) |  |  | (113 | ) |  |  | (6 | ) |  |  | (363 | )
Currency translation adjustments and other |  |  | 1 |  |  |  | — |  |  |  | (12 | ) |  |  | (10 | ) |  |  | — |  |  |  | (21 | )
Balance at December 31, 2013 |  | $ | 232 |  |  | $ | 142 |  |  | $ | 2,999 |  |  | $ | 1,614 |  |  | $ | 68 |  |  | $ | 5,055 |
Identified Intangible Assets by Major Classification | Identified intangible assets by major classification consist of the following (in millions):
|  | Gross |  |  | Accumulated Amortization |  |  | Net Book Value |
December 31, 2012: |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 3,522 |  |  | $ | (907 | ) |  | $ | 2,615 |
Trademarks |  |  | 877 |  |  |  | (152 | ) |  |  | 725 |
Indefinite-lived trade names |  |  | 643 |  |  |  | — |  |  |  | 643 |
Other |  |  | 1,087 |  |  |  | (327 | ) |  |  | 760 |
Total identified intangibles |  | $ | 6,129 |  |  | $ | (1,386 | ) |  | $ | 4,743 |
December 31, 2013: |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 4,093 |  |  | $ | (1,147 | ) |  | $ | 2,946 |
Trademarks |  |  | 893 |  |  |  | (195 | ) |  |  | 698 |
Indefinite-lived trade names |  |  | 643 |  |  |  | — |  |  |  | 643 |
Other |  |  | 1,175 |  |  |  | (407 | ) |  |  | 768 |
Total identified intangibles |  | $ | 6,804 |  |  | $ | (1,749 | ) |  | $ | 5,055 |
Changes in Carrying Amount of Service and Product Warranties | The changes in the carrying amount of service and product warranties are as follows (in millions):
Balance at December 31, 2011 |  | $ | 211 |
Net provisions for warranties issued during the year |  |  | 51 |
Amounts incurred |  |  | (76 | )
Currency translation adjustments and other |  |  | 8 |
Balance at December 31, 2012 |  | $ | 194 |
Net provisions for warranties issued during the year |  |  | 101 |
Amounts incurred |  |  | (73 | )
Currency translation adjustments and other |  |  | 6 |
Balance at December 31, 2013 |  | $ | 228 |
Computation of Weighted Average Basic and Diluted Shares Outstanding | The following table sets forth the computation of weighted average basic and diluted shares outstanding (in millions, except per share data):
|  | Years Ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  | $ | 2,180 |  |  | $ | 2,383 |  |  | $ | 1,909 |
Income from discontinued operations |  | $ | 147 |  |  | $ | 108 |  |  | $ | 85 |
Net income attributable to Company |  | $ | 2,327 |  |  | $ | 2,491 |  |  | $ | 1,994 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Basic—weighted average common shares outstanding |  |  | 426 |  |  |  | 425 |  |  |  | 422 |
Dilutive effect of employee stock options and other unvested stock awards |  |  | 2 |  |  |  | 2 |  |  |  | 2 |
Diluted outstanding shares |  |  | 428 |  |  |  | 427 |  |  |  | 424 |
Per share data: |  |  |  |  |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  | $ | 5.11 |  |  | $ | 5.61 |  |  | $ | 4.52 |
Income from discontinued operations |  | $ | 0.35 |  |  | $ | 0.25 |  |  | $ | 0.21 |
Net income attributable to Company |  | $ | 5.46 |  |  | $ | 5.86 |  |  | $ | 4.73 |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  | $ | 5.09 |  |  | $ | 5.58 |  |  | $ | 4.50 |
Income from discontinued operations |  | $ | 0.35 |  |  | $ | 0.25 |  |  | $ | 0.20 |
Net income attributable to Company |  | $ | 5.44 |  |  | $ | 5.83 |  |  | $ | 4.70 |
Cash dividends per share |  | $ | 0.91 |  |  | $ | 0.49 |  |  | $ | 0.45 |

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