XML 125 R120.htm IDEA: XBRL DOCUMENT v2.4.0.8
Segment Information - Generation Total Revenues Net of Purchased Power and Fuel Expense (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Segment Reporting Information [Line Items]        
RNF from external customers   $ 194 [1],[2]    
Intersegment RNF 178 [2] 179 [2]    
Total RNF 428 [2] 373 [2]    
Revenues 6,912 [3] 6,502 [3] 20,173 [4] 18,725 [4]
Generation Total Consolidated Group [Member]
        
Segment Reporting Information [Line Items]        
Total RNF     5,520 5,564
Revenues 4,412 [5] 4,255 [5] 12,591 11,858
Exelon Generation Co L L C [Member]
        
Segment Reporting Information [Line Items]        
Revenues (15)      
Generation Mid Atlantic [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers   857 [1]    
Intersegment RNF 14 7    
Total RNF 935 864 2,550 [6] 2,475 [6]
Revenues 1,289 1,391 3,984 [6] 3,943 [6]
Generation Midwest [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers   606 [1]    
Intersegment RNF (6) (5)    
Total RNF 716 601 1,877 2,001
Revenues 1,061 1,013 3,313 3,271
Generation New England [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers   52 [1]    
Intersegment RNF (30) 10    
Total RNF 90 62 290 142
Revenues 272 340 1,033 933
Generation New York [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers   29 [1]    
Intersegment RNF 10 (38)    
Total RNF 186 (9) 313 [6] (17) [6]
Revenues 232 184 613 [6] 527 [6]
Generation ERCOT [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers   222 [1]    
Intersegment RNF (77) (78)    
Total RNF 109 144 250 357
Revenues 302 427 741 1,034
Generation Other Regions [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers   116 [1],[7]    
Intersegment RNF (89) [7] (75) [7]    
Total RNF 68 [7] 41 [7] 249 [7] 147 [7]
Revenues 375 [7] 271 [7] 1,023 [7] 737 [7]
Other Segments [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers   1,882 [1]    
Intersegment RNF (178) (179)    
Total RNF 2,104 1,703    
Revenues   44 78 386
Generation All Other Segments [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers   2,076 [1] (519) [1],[8] 200 [1],[8]
Intersegment RNF 0 0 510 [8] 259 [8]
Total RNF 2,532 2,076 (9) [8] 459 [8]
Revenues 881 [9] 629 [9] 1,884 [10] 1,413 [10]
Generation Reportable Segments Total [Member]
        
Segment Reporting Information [Line Items]        
Total RNF     5,529 5,105
Revenues 3,531 3,626 10,707 10,445
Operating Segments [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 250 [1],[2]      
Operating Segments [Member] | Generation Total Consolidated Group [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers     5,520 [1] 5,564 [1]
Revenues     12,591 [11] 11,858 [11]
Operating Segments [Member] | Exelon Generation Co L L C [Member]
        
Segment Reporting Information [Line Items]        
Revenues 4,412 [12],[3] 4,255 [12],[3] 12,591 [13],[4],[6] 11,858 [13],[4],[6]
Operating Segments [Member] | Generation Mid Atlantic [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 921 [1]   2,610 [1],[6] 2,477 [1],[6]
Revenues 1,285 [5] 1,381 [5] 3,998 [11],[6] 3,932 [11],[6]
Operating Segments [Member] | Generation Midwest [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 722 [1]   1,856 [1] 2,002 [1]
Revenues 1,062 [5] 1,018 [5] 3,302 [11] 3,274 [11]
Operating Segments [Member] | Generation New England [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 120 [1]   362 [1] 156 [1]
Revenues 272 [5] 341 [5] 1,028 [11] 942 [11]
Operating Segments [Member] | Generation New York [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 176 [1]   289 [1],[6] 14 [1],[6]
Revenues 230 [5] 198 [5] 614 [11],[6] 547 [11],[6]
Operating Segments [Member] | Generation ERCOT [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 186 [1]   457 [1] 477 [1]
Revenues 303 [5] 430 [5] 743 [11] 1,042 [11]
Operating Segments [Member] | Generation Other Regions [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 157 [1],[7]   465 [1],[7] 238 [1],[7]
Revenues 381 [5],[7] 278 [5],[7] 1,027 [11],[7] 708 [11],[7]
Operating Segments [Member] | Other Segments [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 2,282 [1]      
Operating Segments [Member] | Generation All Other Segments [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers 2,532 [1]      
Operating Segments [Member] | Generation Reportable Segments Total [Member]
        
Segment Reporting Information [Line Items]        
RNF from external customers     6,039 [1] 5,364 [1]
Revenues 3,533 [5] 3,646 [5] 10,712 [11] 10,445 [11]
Intersegment Eliminations [Member] | Generation Total Consolidated Group [Member]
        
Segment Reporting Information [Line Items]        
Intersegment RNF     0 0
Revenues 0 0 0 0
Intersegment Eliminations [Member] | Generation Mid Atlantic [Member]
        
Segment Reporting Information [Line Items]        
Intersegment RNF     (60) [6] (2) [6]
Revenues 4 10 (14) [6] 11 [6]
Intersegment Eliminations [Member] | Generation Midwest [Member]
        
Segment Reporting Information [Line Items]        
Intersegment RNF     21 (1)
Revenues (1) (5) 11 (3)
Intersegment Eliminations [Member] | Generation New England [Member]
        
Segment Reporting Information [Line Items]        
Intersegment RNF     (72) (14)
Revenues 0 (1) 5 (9)
Intersegment Eliminations [Member] | Generation New York [Member]
        
Segment Reporting Information [Line Items]        
Intersegment RNF     24 [6] (31) [6]
Revenues 2 (14) (1) [6] (20) [6]
Intersegment Eliminations [Member] | Generation ERCOT [Member]
        
Segment Reporting Information [Line Items]        
Intersegment RNF     (207) (120)
Revenues (1) (3) (2) (8)
Intersegment Eliminations [Member] | Generation Other Regions [Member]
        
Segment Reporting Information [Line Items]        
Intersegment RNF     (216) [7] (91) [7]
Revenues (6) [7] (7) [7] (4) [7] 29 [7]
Intersegment Eliminations [Member] | Generation All Other Segments [Member]
        
Segment Reporting Information [Line Items]        
Revenues 2 [9] 20 [9] 5 [10] 0 [10]
Intersegment Eliminations [Member] | Generation Reportable Segments Total [Member]
        
Segment Reporting Information [Line Items]        
Intersegment RNF     (510) (259)
Revenues $ (2) $ (20) $ (5) $ 0
[1] Includes purchases and sales from third parties and affiliated sales to ComEd, PECO and BGE.
[2] Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $15 million increase to RNF and $44 million decrease to RNF for the three months ended September 30, 2014 and 2013, respectively, and the elimination of intersegment revenues.
[3] For the three months ended September 30, 2014 and 2013, utility taxes of $22 million and $21 million, respectively, are included in revenues and expenses for Generation. For the three months ended September 30, 2014 and 2013, utility taxes of $61 million and $65 million, respectively, are included in revenues and expenses for ComEd. For the three months ended September 30, 2014 and 2013, utility taxes of $34 million and $33 million, respectively, are included in revenues and expenses for PECO. For the three months ended September 30, 2014 and 2013, utility taxes of $21 million and $20 million, respectively, are included in revenues and expenses for BGE.
[4] For the nine months ended September 30, 2014 and 2013, utility taxes of $67 million and $60 million, respectively, are included in revenues and expenses for Generation. For the nine months ended September 30, 2014 and 2013, utility taxes of $180 million and $182 million, respectively, are included in revenues and expenses for ComEd. For the nine months ended September 30, 2014 and 2013, utility taxes of $99 million and $97 million, respectively, are included in revenues and expenses for PECO. For the nine months ended September 30, 2014 and 2013, utility taxes of $64 million and $62 million, respectively, are included in revenues and expenses for BGE.
[5] Includes all electric sales to third parties and affiliated sales to ComEd, PECO and BGE.
[6] Amounts include activity recorded at CENG from April 1, 2014, the date of integration, through September 30, 2014.
[7] Other regions include the South, West and Canada, which are not considered individually significant.
[8] Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $78 million decrease to RNF and $386 million decrease to RNF for the nine months ended September 30, 2014 and 2013, respectively, and the elimination of intersegment revenues.
[9] Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $22 million decrease to revenues and $125 million decrease to revenues for the three months ended September 30, 2014 and 2013, respectively, and the elimination of intersegment revenues.
[10] Other represents activities not allocated to a region. See text above for a description of included activities. Also includes amortization of intangible assets related to commodity contracts recorded at fair value at the date of merger with Constellation and the consolidation of CENG in purchase accounting of $203 million decrease to revenues and $603 million decrease to revenues, for the nine months ended September 30, 2014 and 2013, respectively, and elimination of intersegment revenues.
[11] Includes all wholesale and retail electric sales to third parties and affiliated sales to ComEd, PECO and BGE.
[12] Generation includes the six power marketing reportable segments shown below: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Regions. Intersegment revenues for Generation for the three months ended September 30, 2014 include revenue from sales to PECO of $28 million and sales to BGE of $83 million in the Mid-Atlantic region, and sales to ComEd of $1 million in the Midwest region. For the three months ended September 30, 2013, intersegment revenues for Generation include revenue from sales to PECO of $82 million and sales to BGE of $144 million in the Mid-Atlantic region, and sales to ComEd of $143 million in the Midwest region
[13] Generation includes the six power marketing reportable segments shown below: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Regions. Intersegment revenues for Generation for the nine months ended September 30, 2014 include revenue from sales to PECO of $165 million and sales to BGE of $290 million in the Mid-Atlantic region, and sales to ComEd of $175 million in the Midwest. For the nine months ended September 30, 2013, intersegment revenues for Generation include revenue from sales to PECO of $321 million and sales to BGE of $356 million in the Mid-Atlantic region, and sales to ComEd of $409 million in the Midwest region, net of $7 million related to the unrealized mark-to-market losses related to the ComEd swap, which eliminate upon consolidation.