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v3.10.0.1

Segment Information Segment Information - Reconciliation to Consolidated Financial Statements (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Mar. 23, 2016 | Dec. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0
Rate-regulated natural gas revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0
Revenues |  | $ 8,814 | $ 9,403 | $ 8,076 | $ 9,693 | $ 8,384 | $ 8,768 | $ 7,665 | $ 8,747 |  |  |  | $ 35,985 | 33,565 | 31,366
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 4,353 | 3,828 | 3,936
Operating Expenses | [1] |  |  |  |  |  |  |  |  |  |  |  | 32,143 | 29,619 | 28,106
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 1,554 | 1,560 | 1,536
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 2,232 | 3,782 | 1,973
Income taxes |  | 26 |  |  |  |  |  |  |  |  |  |  | 120 | (126) | 753
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 2,084 | 3,876 | 1,196
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 7,594 | 7,584 | 8,553
Assets | [2] | 119,666 |  |  |  | 116,770 |  |  |  |  |  |  | 119,666 | 116,770 |
Pepco Holdings LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues |  |  |  |  |  |  |  |  |  |  |  |  | 4,609 | 4,428 |
Rate-regulated natural gas revenues |  |  |  |  |  |  |  |  |  |  |  |  | 181 | 161 |
Revenues |  | 1,117 | 1,361 | 1,076 | 1,251 | 1,121 | 1,310 | 1,074 | 1,175 |  |  |  | 4,805 | 4,679 |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | 15 | 50 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 432 | 578 |
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 35 | 217 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 398 | 362 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 1,375 | 1,396 |
Assets | [3] | 21,984 |  |  |  | 21,247 |  |  |  |  |  |  | 21,984 | 21,247 |
Pepco Holdings LLC [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues |  |  |  |  |  |  |  |  |  |  |  | $ 3,463 |  | 4,428 |
Rate-regulated natural gas revenues |  |  |  |  |  |  |  |  |  |  |  | 92 |  | 161 |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 3,643 |  | 4,679 |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  | 45 | 15 | 50 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  | (58) |  |  |
Income taxes |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  |  | $ (61) | (61) |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  | 1,008 |  |  |
Pepco Holdings LLC [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues |  |  |  |  |  |  |  |  |  | $ 1,122 |  |  |  |  |
Rate-regulated natural gas revenues |  |  |  |  |  |  |  |  |  | 57 |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  | 1,153 |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  | 36 |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  |  | 17 |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  | 19 |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  | 273 |  |  |  |  |
Exelon Generation Co L L C [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0
Rate-regulated natural gas revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0
Revenues |  | 5,069 | $ 5,278 | $ 4,579 | $ 5,512 | 4,657 | $ 4,750 | $ 4,216 | $ 4,878 |  |  |  | 20,437 | 18,500 | 17,757
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | 1,268 | 1,115 | 1,439
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 365 | 1,455 | 857
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (108) | (1,376) | 282
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 443 | 2,798 | 550
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 2,242 | 2,259 | 3,078
Assets | [4] | 47,556 |  |  |  | 48,457 |  |  |  |  |  |  | 47,556 | 48,457 |
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 16,155 | 14,227 | 13,970
Competitive businesses natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 2,710 | 2,575 | 2,146
Competitive businesses other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 303 | 592 | 207
Rate-regulated electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 15,344 | 14,840 | 13,869
Rate-regulated natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 1,470 | 1,333 | 1,166
Shared service and other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 3 | 0 | 7
Revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 35,985 | 33,567 | 31,365
Operating Segments [Member] | Pepco Holdings LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | [5] |  |  |  |  |  |  |  |  |  |  |  |  | 47 |
Operating Segments [Member] | Pepco Holdings LLC [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | [5] |  |  |  |  |  |  |  |  |  |  | 43 |  |  |
Operating Segments [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | [5] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | (1) | 7 | 10
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | (1,256) | (1,105) | (1,430)
Competitive businesses natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | (8) | 0 | 0
Competitive businesses other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | (5) | (1) | (4)
Rate-regulated electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | (45) | (29) | (31)
Rate-regulated natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | (20) | (10) | (13)
Shared service and other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | (1,960) | (1,880) | (1,686)
Revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | (3,294) | (3,025) | (3,164)
Operating revenues from affiliates | [6] |  |  |  |  |  |  |  |  |  |  |  | 1 | 2 | 5
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating Expenses | [1] |  |  |  |  |  |  |  |  |  |  |  | (3,341) | (3,026) | (3,164)
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (1) | (2) | (5)
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (1) | (2) | (5)
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Assets |  | (9,800) |  |  |  | (10,552) |  |  |  |  |  |  | (9,800) | (10,552) |
Intersegment Eliminations [Member] | Pepco Holdings LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | (17) | (14) |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | (420) | (3) |
Revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | (437) | (17) |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | (437) | (19) |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 0 | (1) |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  |  | (435) | (17) |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 0 | (1) |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (408) | (404) |
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (2) | 0 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 15 | 50 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Assets |  | (5,421) |  |  |  | (4,987) |  |  |  |  |  |  | (5,421) | (4,987) |
Intersegment Eliminations [Member] | Pepco Holdings LLC [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  |  |  | (13) |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  |  |  | (13) |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  | (13) |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  | (13) |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  | 71 |  |  |
Income taxes |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  | 45 |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Intersegment Eliminations [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  | (4) |  |  |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  | (4) |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  | (4) |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | (4) |  |  |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  | (3) |  |  |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  | (2) |  |  |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  | (118) |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Exelon Generation Co L L C [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1],[8] |  |  |  |  |  |  |  |  |  |  |  | 17,411 | 15,332 | 15,400
Competitive businesses natural gas revenues | [1],[8] |  |  |  |  |  |  |  |  |  |  |  | 2,718 | 2,575 | 2,146
Competitive businesses other revenues | [1],[8] |  |  |  |  |  |  |  |  |  |  |  | 308 | 593 | 211
Rate-regulated electric revenues | [1],[8] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Rate-regulated natural gas revenues | [1],[8] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Shared service and other revenues | [1],[8] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues | [1],[8] |  |  |  |  |  |  |  |  |  |  |  | 20,437 | 18,500 | 17,757
Depreciation and amortization | [8] |  |  |  |  |  |  |  |  |  |  |  | 1,797 | 1,457 | 1,879
Operating Expenses | [1],[8] |  |  |  |  |  |  |  |  |  |  |  | 19,510 | 18,001 | 16,878
Interest expense, net | [8] |  |  |  |  |  |  |  |  |  |  |  | 432 | 440 | 364
Income (loss) before income taxes | [8] |  |  |  |  |  |  |  |  |  |  |  | 365 | 1,455 | 857
Income taxes | [8] |  |  |  |  |  |  |  |  |  |  |  | (108) | (1,376) | 282
Net income (loss) | [8] |  |  |  |  |  |  |  |  |  |  |  | 443 | 2,798 | 550
Capital expenditures | [8] |  |  |  |  |  |  |  |  |  |  |  | 2,242 | 2,259 | 3,078
Assets | [8] | 47,556 |  |  |  | 48,457 |  |  |  |  |  |  | 47,556 | 48,457 |
Exelon Generation Co L L C [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [6],[8] |  |  |  |  |  |  |  |  |  |  |  | 1,269 | 1,110 | 1,428
Commonwealth Edison Co [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Competitive businesses natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Competitive businesses other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Rate-regulated electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 5,882 | 5,536 | 5,254
Rate-regulated natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Shared service and other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 5,882 | 5,536 | 5,254
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 940 | 850 | 775
Operating Expenses | [1] |  |  |  |  |  |  |  |  |  |  |  | 4,741 | 4,214 | 4,056
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 347 | 361 | 461
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 832 | 984 | 679
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 168 | 417 | 301
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 664 | 567 | 378
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 2,126 | 2,250 | 2,734
Assets |  | 31,213 |  |  |  | 29,726 |  |  |  |  |  |  | 31,213 | 29,726 |
Commonwealth Edison Co [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [6] |  |  |  |  |  |  |  |  |  |  |  | 27 | 15 | 15
PECO Energy Co [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Competitive businesses natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Competitive businesses other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Rate-regulated electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 2,470 | 2,375 | 2,531
Rate-regulated natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 568 | 495 | 463
Shared service and other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 3,038 | 2,870 | 2,994
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 301 | 286 | 270
Operating Expenses | [1] |  |  |  |  |  |  |  |  |  |  |  | 2,452 | 2,215 | 2,292
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 129 | 126 | 123
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 466 | 538 | 587
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 6 | 104 | 149
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 460 | 434 | 438
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 849 | 732 | 686
Assets |  | 10,642 |  |  |  | 10,170 |  |  |  |  |  |  | 10,642 | 10,170 |
PECO Energy Co [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [6] |  |  |  |  |  |  |  |  |  |  |  | 8 | 7 | 8
Baltimore Gas and Electric Company [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Competitive businesses natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Competitive businesses other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Rate-regulated electric revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 2,428 | 2,489 | 2,609
Rate-regulated natural gas revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 741 | 687 | 624
Shared service and other revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues | [1] |  |  |  |  |  |  |  |  |  |  |  | 3,169 | 3,176 | 3,233
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 483 | 473 | 423
Operating Expenses | [1] |  |  |  |  |  |  |  |  |  |  |  | 2,696 | 2,562 | 2,683
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 106 | 105 | 103
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 387 | 525 | 468
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 74 | 218 | 174
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 313 | 307 | 294
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 959 | 882 | 934
Assets |  | 9,716 |  |  |  | 9,104 |  |  |  |  |  |  | 9,716 | 9,104 |
Baltimore Gas and Electric Company [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [6] |  |  |  |  |  |  |  |  |  |  |  | 29 | 16 | 21
Pepco Holdings LLC [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 3,643 |  |  |
Pepco Holdings LLC [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  | 1,153 |  |  |  |  |
Pepco Holdings LLC [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1],[9] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Competitive businesses natural gas revenues | [1],[9] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Competitive businesses other revenues | [1],[9] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Rate-regulated electric revenues | [1],[7],[9] |  |  |  |  |  |  |  |  |  |  |  | 4,609 | 4,469 |
Rate-regulated natural gas revenues | [1],[7],[9] |  |  |  |  |  |  |  |  |  |  |  | 181 | 161 |
Shared service and other revenues | [1],[7],[9] |  |  |  |  |  |  |  |  |  |  |  | 15 | 49 |
Revenues | [1],[7],[9] |  |  |  |  |  |  |  |  |  |  |  | 4,805 | 4,679 |
Depreciation and amortization | [9] |  |  |  |  |  |  |  |  |  |  |  | 740 | 675 |
Operating Expenses | [1],[9] |  |  |  |  |  |  |  |  |  |  |  | 4,156 | 3,911 |
Interest expense, net | [9] |  |  |  |  |  |  |  |  |  |  |  | 261 | 245 |
Income (loss) before income taxes | [9] |  |  |  |  |  |  |  |  |  |  |  | 432 | 578 |
Income taxes | [9] |  |  |  |  |  |  |  |  |  |  |  | 35 | 217 |
Net income (loss) | [9] |  |  |  |  |  |  |  |  |  |  |  | 398 | 362 |
Capital expenditures | [9] |  |  |  |  |  |  |  |  |  |  |  | 1,375 | 1,396 |
Assets |  | 21,984 |  |  |  | 21,247 |  |  |  |  |  |  | 21,984 | 21,247 |
Pepco Holdings LLC [Member] | Operating Segments [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1],[9] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Competitive businesses natural gas revenues | [1],[9] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Competitive businesses other revenues | [1],[9] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Rate-regulated electric revenues | [1],[7],[9] |  |  |  |  |  |  |  |  |  |  | 3,506 |  |  |
Rate-regulated natural gas revenues | [1],[7],[9] |  |  |  |  |  |  |  |  |  |  | 92 |  |  |
Shared service and other revenues | [1],[7],[9] |  |  |  |  |  |  |  |  |  |  | 45 |  |  |
Revenues | [1],[7],[9] |  |  |  |  |  |  |  |  |  |  | 3,643 |  |  |
Depreciation and amortization | [9] |  |  |  |  |  |  |  |  |  |  | 515 |  |  |
Operating Expenses | [1],[9] |  |  |  |  |  |  |  |  |  |  | 3,549 |  |  |
Interest expense, net | [9] |  |  |  |  |  |  |  |  |  |  | 195 |  |  |
Income (loss) before income taxes | [9] |  |  |  |  |  |  |  |  |  |  | (58) |  |  |
Income taxes | [9] |  |  |  |  |  |  |  |  |  |  | 3 |  |  |
Net income (loss) | [9] |  |  |  |  |  |  |  |  |  |  | (61) |  |  |
Capital expenditures | [9] |  |  |  |  |  |  |  |  |  |  | 1,008 |  |  |
Assets | [9] | 21,984 |  |  |  | 21,247 |  |  |  |  |  |  | 21,984 | 21,247 |
Pepco Holdings LLC [Member] | Operating Segments [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  | 1,096 |  |  |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  | 57 |  |  |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  | 1,153 |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 152 |  |  |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  | 1,048 |  |  |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  | 65 |  |  |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  | 36 |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  |  | 17 |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  | 19 |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  | 273 |  |  |  |  |
Pepco Holdings LLC [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [6],[9] |  |  |  |  |  |  |  |  |  |  |  | 15 | 50 |
Pepco Holdings LLC [Member] | Intersegment Eliminations [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [6],[9] |  |  |  |  |  |  |  |  |  |  | 45 |  |  |
Pepco Holdings LLC [Member] | Intersegment Eliminations [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Potomac Electric Power Company [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 2,239 | 2,158 |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 2,239 | 2,158 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 385 | 321 |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  |  | 1,919 | 1,760 |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 128 | 121 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 223 | 310 |
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 13 | 105 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 210 | 205 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 656 | 628 |
Assets |  | 8,299 |  |  |  | 7,832 |  |  |  |  |  |  | 8,299 | 7,832 |
Potomac Electric Power Company [Member] | Operating Segments [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  |  |  | 1,675 |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  |  |  | 1,675 |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  | 224 |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  | 1,577 |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  | 98 |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  | 36 |  |  |
Income taxes |  |  |  |  |  |  |  |  |  |  |  | 26 |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  | 489 |  |  |
Potomac Electric Power Company [Member] | Operating Segments [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  | 511 |  |  |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  | 511 |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 71 |  |  |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  | 443 |  |  |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  | 29 |  |  |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  | 47 |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  |  | 15 |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  | 32 |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  | 97 |  |  |  |  |
Potomac Electric Power Company [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | 6 | 6 |
Potomac Electric Power Company [Member] | Intersegment Eliminations [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |
Potomac Electric Power Company [Member] | Intersegment Eliminations [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Delmarva Power & Light Company [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 1,151 | 1,139 |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 181 | 161 |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 1,332 | 1,300 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 182 | 167 |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  |  | 1,143 | 1,071 |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 58 | 51 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 142 | 192 |
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 22 | 71 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 120 | 121 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 364 | 428 |
Assets |  | 4,588 |  |  |  | 4,357 |  |  |  |  |  |  | 4,588 | 4,357 |
Delmarva Power & Light Company [Member] | Operating Segments [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  |  |  | 850 |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  |  |  | 92 |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  |  |  | 942 |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  | 120 |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  | 952 |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  | 38 |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  | (30) |  |  |
Income taxes |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  | (35) |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  | 277 |  |  |
Delmarva Power & Light Company [Member] | Operating Segments [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  | 279 |  |  |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  | 56 |  |  |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  | 335 |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 37 |  |  |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  | 284 |  |  |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  | 12 |  |  |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  | 43 |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  |  | 17 |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  | 26 |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  | 72 |  |  |  |  |
Delmarva Power & Light Company [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | 8 | 8 |
Delmarva Power & Light Company [Member] | Intersegment Eliminations [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |
Delmarva Power & Light Company [Member] | Intersegment Eliminations [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Atlantic City Electric Company [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 1,236 | 1,186 |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Revenues | [7] |  |  |  |  |  |  |  |  |  |  |  | 1,236 | 1,186 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 136 | 146 |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  |  | 1,087 | 1,029 |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  | 64 | 61 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 87 | 103 |
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 12 | 26 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 75 | 77 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 335 | 312 |
Assets |  | 3,699 |  |  |  | 3,445 |  |  |  |  |  |  | 3,699 | 3,445 |
Atlantic City Electric Company [Member] | Operating Segments [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  |  |  | 989 |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  |  |  | 989 |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  | 128 |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  | 1,000 |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  | 47 |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  | (51) |  |  |
Income taxes |  |  |  |  |  |  |  |  |  |  |  | (5) |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  | (47) |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  | 218 |  |  |
Atlantic City Electric Company [Member] | Operating Segments [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7] |  |  |  |  |  |  |  |  | 268 |  |  |  |  |
Rate-regulated natural gas revenues | [7] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Shared service and other revenues | [7] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Revenues | [7] |  |  |  |  |  |  |  |  | 268 |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 37 |  |  |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  | 251 |  |  |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  | 15 |  |  |  |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  |  | 5 |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  |  | 5 |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  |  | 93 |  |  |  |  |
Atlantic City Electric Company [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | 3 | 2 |
Atlantic City Electric Company [Member] | Intersegment Eliminations [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Atlantic City Electric Company [Member] | Intersegment Eliminations [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Corporate and Other [Member] | Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Competitive businesses electric revenues | [1],[10] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Competitive businesses natural gas revenues | [1],[10] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Competitive businesses other revenues | [1],[10] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Rate-regulated electric revenues | [1],[10] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Rate-regulated natural gas revenues | [1],[10] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Shared service and other revenues | [1],[10] |  |  |  |  |  |  |  |  |  |  |  | 1,948 | 1,831 | 1,648
Revenues | [1],[10] |  |  |  |  |  |  |  |  |  |  |  | 1,948 | 1,831 | 1,648
Depreciation and amortization | [10] |  |  |  |  |  |  |  |  |  |  |  | 92 | 87 | 74
Operating Expenses | [1],[10] |  |  |  |  |  |  |  |  |  |  |  | 1,929 | 1,742 | 1,812
Interest expense, net | [10] |  |  |  |  |  |  |  |  |  |  |  | 279 | 283 | 290
Income (loss) before income taxes | [10] |  |  |  |  |  |  |  |  |  |  |  | (249) | (296) | (555)
Income taxes | [10] |  |  |  |  |  |  |  |  |  |  |  | (55) | 294 | (156)
Net income (loss) | [10] |  |  |  |  |  |  |  |  |  |  |  | (193) | (590) | (398)
Capital expenditures | [10] |  |  |  |  |  |  |  |  |  |  |  | 43 | 65 | 113
Assets | [10] | 8,355 |  |  |  | 8,618 |  |  |  |  |  |  | 8,355 | 8,618 |
Corporate and Other [Member] | Corporate, Non-Segment [Member] | Pepco Holdings LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7],[11] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Rate-regulated natural gas revenues | [7],[11] |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Shared service and other revenues | [7],[11] |  |  |  |  |  |  |  |  |  |  |  | 435 | 52 |
Revenues | [7],[11] |  |  |  |  |  |  |  |  |  |  |  | 435 | 52 |
Depreciation and amortization | [11] |  |  |  |  |  |  |  |  |  |  |  | 37 | 42 |
Operating Expenses | [11] |  |  |  |  |  |  |  |  |  |  |  | 442 | 68 |
Interest expense, net | [11] |  |  |  |  |  |  |  |  |  |  |  | 11 | 13 |
Income (loss) before income taxes | [11] |  |  |  |  |  |  |  |  |  |  |  | 388 | 377 |
Income taxes | [11] |  |  |  |  |  |  |  |  |  |  |  | (10) | 15 |
Net income (loss) | [11] |  |  |  |  |  |  |  |  |  |  |  | (22) | (91) |
Capital expenditures | [11] |  |  |  |  |  |  |  |  |  |  |  | 20 | 28 |
Assets | [11] | $ 10,819 |  |  |  | $ 10,600 |  |  |  |  |  |  | 10,819 | 10,600 |
Corporate and Other [Member] | Corporate, Non-Segment [Member] | Pepco Holdings LLC [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7],[11] |  |  |  |  |  |  |  |  |  |  | 5 |  |  |
Rate-regulated natural gas revenues | [7],[11] |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Shared service and other revenues | [7],[11] |  |  |  |  |  |  |  |  |  |  | 45 |  |  |
Revenues | [7],[11] |  |  |  |  |  |  |  |  |  |  | 50 |  |  |
Depreciation and amortization | [11] |  |  |  |  |  |  |  |  |  |  | 43 |  |  |
Operating Expenses | [11] |  |  |  |  |  |  |  |  |  |  | 33 |  |  |
Interest expense, net | [11] |  |  |  |  |  |  |  |  |  |  | 12 |  |  |
Income (loss) before income taxes | [11] |  |  |  |  |  |  |  |  |  |  | (84) |  |  |
Income taxes | [11] |  |  |  |  |  |  |  |  |  |  | (23) |  |  |
Net income (loss) | [11] |  |  |  |  |  |  |  |  |  |  | (34) |  |  |
Capital expenditures | [11] |  |  |  |  |  |  |  |  |  |  | 24 |  |  |
Corporate and Other [Member] | Corporate, Non-Segment [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate-regulated electric revenues | [7],[11] |  |  |  |  |  |  |  |  | 42 |  |  |  |  |
Rate-regulated natural gas revenues | [7],[11] |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Shared service and other revenues | [7],[11] |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Revenues | [7],[11] |  |  |  |  |  |  |  |  | 43 |  |  |  |  |
Depreciation and amortization | [11] |  |  |  |  |  |  |  |  | 11 |  |  |  |  |
Operating Expenses | [11] |  |  |  |  |  |  |  |  | 73 |  |  |  |  |
Interest expense, net | [11] |  |  |  |  |  |  |  |  | 11 |  |  |  |  |
Income (loss) before income taxes | [11] |  |  |  |  |  |  |  |  | 59 |  |  |  |  |
Income taxes | [11] |  |  |  |  |  |  |  |  | (16) |  |  |  |  |
Net income (loss) | [11] |  |  |  |  |  |  |  |  | (44) |  |  |  |  |
Capital expenditures | [11] |  |  |  |  |  |  |  |  | 11 |  |  |  |  |
Corporate and Other [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [6],[10] |  |  |  |  |  |  |  |  |  |  |  | 1,942 | 1,824 | 1,647
Corporate and Other [Member] | Intersegment Eliminations [Member] | Pepco Holdings LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [11] |  |  |  |  |  |  |  |  |  |  |  | 435 | 53 |
Corporate and Other [Member] | Intersegment Eliminations [Member] | Pepco Holdings LLC [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [11] |  |  |  |  |  |  |  |  |  |  | $ 47 |  |  |
Corporate and Other [Member] | Intersegment Eliminations [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [11] |  |  |  |  |  |  |  |  | $ 0 |  |  |  |  |
Generation Mid Atlantic [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | 5,487 | 5,540 | 6,179
Generation Mid Atlantic [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | [12] |  |  |  |  |  |  |  |  |  |  |  | 5,474 | 5,515 | 6,212
Generation Mid Atlantic [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | 13 | 25 | (33)
Generation Midwest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | 4,706 | 4,181 | 4,412
Generation Midwest [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | [12] |  |  |  |  |  |  |  |  |  |  |  | 4,717 | 4,206 | 4,402
Generation Midwest [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates |  |  |  |  |  |  |  |  |  |  |  |  | (11) | (25) | 10
Segment Elimination [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues from affiliates | [6] |  |  |  |  |  |  |  |  |  |  |  | $ (3,289) | $ (3,020) | $ (3,159)
[1] | Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 23 — Supplemental Financial Information for additional information on total utility taxes.
[2] | Exelon’s consolidated assets include $9,667 million and $9,597 million at December 31, 2018 and 2017, respectively, of certain VIEs that can only be used to settle the liabilities of the VIE. Exelon’s consolidated liabilities include $3,548 million and $3,618 million at December 31, 2018 and 2017, respectively, of certain VIEs for which the VIE creditors do not have recourse to Exelon. See Note 2–Variable Interest Entities for additional information.
[3] | PHI’s consolidated total assets include $33 million and $41 million at December 31, 2018 and 2017, respectively, of PHI's consolidated VIE that can only be used to settle the liabilities of the VIE. PHI’s consolidated total liabilities include $69 million and $102 million at December 31, 2018 and 2017, respectively, of PHI's consolidated VIE for which the VIE creditors do not have recourse to PHI. See Note 2 - Variable Interest Entities for additional information.
[4] | Generation’s consolidated assets include $9,634 million and $9,556 million at December 31, 2018 and 2017, respectively, of certain VIEs that can only be used to settle the liabilities of the VIE. Generation’s consolidated liabilities include $3,480 million and $3,516 million at December 31, 2018 and 2017, respectively, of certain VIEs for which the VIE creditors do not have recourse to Generation. See Note 2–Variable Interest Entities for additional information.
[5] | Includes operating revenues from affiliates of $47 million and $43 million at PHI in 2017 and 2016, respectively.
[6] | Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with Generation’s sale of certain products and services by and between Exelon’s segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory authoritative guidance. For Exelon, these amounts are included in Operating revenues in the Consolidated Statements of Operations and Comprehensive Income.
[7] | Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 23 — Supplemental Financial Information for additional information on total utility taxes.
[8] | See Note 25 — Related Party Transactions for additional information on intersegment revenues.
[9] | Amounts included represent activity for PHI's successor period, March 24, 2016 through December 31, 2018.
[10] | Other primarily includes Exelon’s corporate operations, shared service entities and other financing and investment activities.
[11] | Other primarily includes PHI’s corporate operations, shared service entities and other financing and investment activities. For the predecessor periods presented, Other includes the activity of PHI’s unregulated businesses which were distributed to Exelon and Generation as a result of the PHI Merger.
[12] | Includes all wholesale and retail electric sales to third parties and affiliated sales to the Utility Registrants

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