v2.4.0.8

Business Segment Information | 6 Months Ended
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Jun. 30, 2013
Segment Reporting [Abstract] |
Segments Of Business | Business Segment Information Operating segments are components of an enterprise for which separate financial information is available and evaluated regularly by the chief operating decision maker in deciding how to allocate resources and assess performance. NiSource's Chief Executive Officer is the chief operating decision maker. At June 30, 2013, NiSource’s operations are divided into three primary business segments. The Gas Distribution Operations segment provides natural gas service and transportation for residential, commercial and industrial customers in Ohio, Pennsylvania, Virginia, Kentucky, Maryland, Indiana and Massachusetts. The Columbia Pipeline Group (formerly known as Gas Transmission and Storage) Operations segment offers gas transportation and storage services for LDCs, marketers and industrial and commercial customers located in northeastern, mid-Atlantic, midwestern and southern states along with unregulated businesses that include midstream services and development of mineral rights positions. The Electric Operations segment provides electric service in 20 counties in the northern part of Indiana. The following table provides information about business segments. NiSource uses operating income as its primary measurement for each of the reported segments and makes decisions on finance, dividends and taxes at the corporate level on a consolidated basis. Segment revenues include intersegment sales to affiliated subsidiaries, which are eliminated in consolidation. Affiliated sales are recognized on the basis of prevailing market, regulated prices or at levels provided for under contractual agreements. Operating income is derived from revenues and expenses directly associated with each segment.
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in millions) | 2013 |  | 2012 |  | 2013 |  | 2012
REVENUES |  |  |  |  |  |  |
Gas Distribution Operations |  |  |  |  |  |  |
Unaffiliated | $ | 572.4 |  |  | $ | 443.8 |  |  | $ | 1,717.3 |  |  | $ | 1,503.9 |
Intersegment | — |  |  | 0.1 |  |  | 0.2 |  |  | 0.3 |
Total | 572.4 |  |  | 443.9 |  |  | 1,717.5 |  |  | 1,504.2 |
Columbia Pipeline Group Operations |  |  |  |  |  |  |
Unaffiliated | 242.3 |  |  | 209.5 |  |  | 500.7 |  |  | 442.5 |
Intersegment | 31.5 |  |  | 31.5 |  |  | 74.5 |  |  | 73.9 |
Total | 273.8 |  |  | 241.0 |  |  | 575.2 |  |  | 516.4 |
Electric Operations |  |  |  |  |  |  |
Unaffiliated | 384.9 |  |  | 377.2 |  |  | 762.3 |  |  | 730.1 |
Intersegment | 0.2 |  |  | 0.2 |  |  | 0.4 |  |  | 0.4 |
Total | 385.1 |  |  | 377.4 |  |  | 762.7 |  |  | 730.5 |
Corporate and Other |  |  |  |  |  |  |
Unaffiliated | 12.7 |  |  | 8.3 |  |  | 26.3 |  |  | 10.5 |
Intersegment | 110.0 |  |  | 115.3 |  |  | 231.7 |  |  | 226.0 |
Total | 122.7 |  |  | 123.6 |  |  | 258.0 |  |  | 236.5 |
Eliminations | (141.7 | ) |  | (147.1 | ) |  | (306.8 | ) |  | (300.6 | )
Consolidated Gross Revenues | $ | 1,212.3 |  |  | $ | 1,038.8 |  |  | $ | 3,006.6 |  |  | $ | 2,687.0 |
Operating Income (Loss) |  |  |  |  |  |  |
Gas Distribution Operations | $ | 50.0 |  |  | $ | 43.4 |  |  | $ | 284.1 |  |  | $ | 253.0 |
Columbia Pipeline Group Operations | 88.8 |  |  | 91.5 |  |  | 222.3 |  |  | 230.1 |
Electric Operations | 59.5 |  |  | 70.3 |  |  | 124.7 |  |  | 116.5 |
Corporate and Other | (4.8 | ) |  | (0.2 | ) |  | (9.5 | ) |  | 2.4 |
Consolidated Operating Income | $ | 193.5 |  |  | $ | 205.0 |  |  | $ | 621.6 |  |  | $ | 602.0 |

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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 1 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599 Reference 2: 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=6534315&loc=d3e8933-108599 Reference 3: 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=6534315&loc=d3e8538-108599 Reference 4: 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=6534315&loc=d3e8844-108599 Reference 5: 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=6534315&loc=d3e8864-108599 Reference 6: 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=6534315&loc=d3e8981-108599 Reference 7: 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=6534315&loc=d3e8984-108599 Reference 8: 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=6534315&loc=d3e9038-108599 Reference 9: 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=6534315&loc=d3e8906-108599 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=6534315&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 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 Reference 12: 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=6534315&loc=d3e9031-108599 Reference 13: 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=6534315&loc=d3e8971-108599 Reference 14: 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=6534315&loc=d3e8595-108599 + Details
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