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Business Segments - Other Cost by Segment (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Segment Reporting Information [Line Items] |  |  |  |
Total other costs | $ 57 | $ 28 | $ 122 | $ 32
Operating Segments [Member] | Rig Technology [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total other costs | 13 | 17 | 20 | 21
Operating Segments [Member] | Petroleum Services & Supplies [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total other costs | 31 | 3 | 87 | 3
Operating Segments [Member] | Distribution & Transmission [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total other costs | $ 13 | $ 8 | $ 15 | $ 8

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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Article 5 + Details
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- Details
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