v2.4.0.6

Employee Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2012
Employee Benefit Plans [Abstract] |
Pension and Postretirement Plans |
Pension and Postretirement Plans |  |  |  |  |  |  |  |  |  |  |  |
| Millions of Dollars
| Pension Benefits |  | Other Benefits
| 2012 |  | 2011 |  | 2012 |  | 2011
| U.S. |  | Int’l. |  | U.S. |  | Int’l. |  |  |  |
Components of Net Periodic Benefit Cost |  |  |  |  |  |  |  |  |  |  |  |
Three Months Ended September 30 |  |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 33 |  | 20 |  | 56 |  | 25 |  | 1 |  | 3
Interest cost |  | 39 |  | 35 |  | 62 |  | 45 |  | 8 |  | 10
Expected return on plan assets |  | (47) |  | (37) |  | (70) |  | (44) |  | - |  | -
Amortization of prior service cost |  | 1 |  | (2) |  | 2 |  | - |  | (1) |  | (1)
Recognized net actuarial (gain) loss |  | 41 |  | 13 |  | 42 |  | 11 |  | - |  | (1)
Net periodic benefit costs | $ | 67 |  | 29 |  | 92 |  | 37 |  | 8 |  | 11
Nine Months Ended September 30 |  |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 133 |  | 70 |  | 169 |  | 74 |  | 5 |  | 8
Interest cost |  | 150 |  | 116 |  | 185 |  | 133 |  | 26 |  | 31
Expected return on plan assets |  | (177) |  | (120) |  | (210) |  | (131) |  | - |  | -
Amortization of prior service cost |  | 5 |  | (6) |  | 7 |  | - |  | (3) |  | (5)
Recognized net actuarial (gain) loss |  | 145 |  | 46 |  | 124 |  | 34 |  | (1) |  | (4)
Net periodic benefit costs | $ | 256 |  | 106 |  | 275 |  | 110 |  | 27 |  | 30

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- Definition Tabular disclosure of the aggregate benefit obligation and aggregate fair value of plan assets for pension plans and/or other employee benefit plans with benefit obligations in excess of plan assets as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2417-114920 + Details
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