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Operating Segments | 3 Months Ended
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Mar. 31, 2016
Operating Segments |
Operating Segments | Note 11—Operating Segments We manage our operations through three operating segments: Transportation, Facilities and Supply and Logistics. Our Chief Operating Decision Maker (our Chief Executive Officer) evaluates segment performance based on measures including segment profit and maintenance capital investment. We define segment profit as revenues and equity earnings in unconsolidated entities less (a) purchases and related costs, (b) field operating costs and (c) segment general and administrative expenses. Each of the items above excludes depreciation and amortization. Maintenance capital consists of capital expenditures for the replacement of partially or fully depreciated assets in order to maintain the operating and/or earnings capacity of our existing assets. The following table reflects certain financial data for each segment (in millions):
Three Months Ended March 31, 2016 |  | Transportation |  | Facilities |  | Supply and Logistics |  | Total |
Revenues: |  |  |  |  |  |  |  |  |
External Customers |  | $ | 154 |  | $ | 138 |  | $ | 3,819 |  | $ | 4,111 |
Intersegment (1) |  | 229 |  | 127 |  | 2 |  | 358 |
Total revenues of reportable segments |  | $ | 383 |  | $ | 265 |  | $ | 3,821 |  | $ | 4,469 |
Equity earnings in unconsolidated entities |  | $ | 47 |  | $ | — |  | $ | — |  | $ | 47 |
Segment profit (2) (3) |  | $ | 247 |  | $ | 159 |  | $ | 37 |  | $ | 443 |
Maintenance capital |  | $ | 35 |  | $ | 9 |  | $ | 3 |  | $ | 47 |
Three Months Ended March 31, 2015 |  | Transportation |  | Facilities |  | Supply and Logistics |  | Total |
Revenues: |  |  |  |  |  |  |  |  |
External Customers |  | $ | 185 |  | $ | 125 |  | $ | 5,632 |  | $ | 5,942 |
Intersegment (1) |  | 215 |  | 132 |  | 2 |  | 349 |
Total revenues of reportable segments |  | $ | 400 |  | $ | 257 |  | $ | 5,634 |  | $ | 6,291 |
Equity earnings in unconsolidated entities |  | $ | 37 |  | $ | — |  | $ | — |  | $ | 37 |
Segment profit (2) (3) |  | $ | 241 |  | $ | 142 |  | $ | 130 |  | $ | 513 |
Maintenance capital |  | $ | 33 |  | $ | 15 |  | $ | 2 |  | $ | 50 |
| (1) |  | Segment revenues include intersegment amounts that are eliminated in “Purchases and related costs” and “Field operating costs” in our Condensed Consolidated Statements of Operations. Intersegment sales are conducted at posted tariff rates, rates similar to those charged to third parties or rates that we believe approximate market at the time the agreement is executed or renegotiated. For further discussion, see “Analysis of Operating Segments” under Item 7 of our 2015 Annual Report on Form 10-K.
| (2) |  | Supply and Logistics segment profit includes interest expense (related to hedged inventory purchases) of $2 million and $1 million for the three months ended March 31, 2016 and 2015, respectively.
| (3) |  | The following table reconciles segment profit to net income attributable to PAA (in millions):
|  | Three Months Ended March 31, |
|  | 2016 |  | 2015 |
Segment profit |  | $ | 443 |  | $ | 513 |
Depreciation and amortization |  | (114 | ) | (104 | )
Interest expense, net |  | (112 | ) | (105 | )
Other income/(expense), net |  | 5 |  | (4 | )
Income before tax |  | 222 |  | 300 |
Income tax expense |  | (19 | ) | (16 | )
Net income |  | 203 |  | 284 |
Net income attributable to noncontrolling interests |  | (1 | ) | (1 | )
Net income attributable to PAA |  | $ | 202 |  | $ | 283 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8981-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9038-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8971-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8595-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8380-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8984-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9031-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9054-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8538-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8864-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8924-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8906-108599 + Details
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