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Supplemental Financial Information Supplemental Financial Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Mar. 23, 2016 | Sep. 30, 2017 | Dec. 31, 2016 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | $ 3,740 |  | $ 3,293 |  | $ 3,477 |
Amortization of Regulatory Asset |  |  |  |  |  |  | 555 |  | 478 |  | 407 |
Amortization of Intangible Assets |  |  |  |  |  |  | (109) |  | (237) |  | (336) |
Amortization of Nuclear Fuel Lease | [1] |  |  |  |  |  | 1,115 |  | 1,096 |  | 1,159 |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 489 |  | 468 |  | 446 |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 5,971 |  | 5,427 |  | 5,576 |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 1,421 |  | 2,430 |  | 1,340 |
Income taxes (net of refunds) |  |  |  |  |  |  | 95 |  | 540 |  | (441) |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 583 |  | 643 |  | 619 |
Gain (loss) on equity method investments |  |  |  |  |  |  | 28 |  | 32 |  | 24 |
Provision for uncollectible accounts |  |  |  |  |  |  | 159 |  | 125 |  | 155 |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 24 |  | 56 |  | 12 |
Stock-based compensation costs |  |  |  |  |  |  | 75 |  | 88 |  | 111 |
Other decommissioning related-activity |  |  |  |  |  |  | (2) | [3] | (313) | [4] | (384) | [5]
Energy-related options |  |  |  |  |  |  | 10 | [6] | 7 | [7] | (11) | [8]
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 8 |  | 9 |  | 9 |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 14 |  | (10) |  | 76 |
Amortization of debt fair value adjustment |  |  |  |  |  |  | (15) |  | (18) |  | (11) |
Merger-related commitments |  |  |  |  |  |  | 0 | [9] | 0 | [10] | 558 | [11],[12]
Severance costs |  |  |  |  |  |  | 35 |  | 35 |  | 99 |
Amortization of debt costs |  |  |  |  |  |  | 36 |  | 64 |  | 35 |
Discrete impacts from EIMA and FEJA |  |  |  |  |  |  | 28 | [13] | (52) | [14] | 8 | [15]
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 68 |  |  |
Long-term incentive plan |  |  |  |  |  |  | 140 |  | 109 |  | 70 |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 44 |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  |  |  |  |  |  | 37 |
Baltimore City conduit lease settlement |  |  |  |  |  |  |  |  |  |  | (28) |
Cash Working Capital order |  |  |  |  |  |  |  |  |  |  | (13) |
Asset Retirement Obligation, Revision of Estimate |  |  |  |  |  |  | 20 |  |  |  | 2 |
Other |  |  |  |  |  |  | (19) |  | (30) |  | (35) |
Total other non-cash operating activities |  |  |  |  |  |  | 1,124 |  | 721 |  | 1,333 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | (69) |  | 42 |  | (128) |
Change in PPE related to ARO update |  | $ (107) |  |  |  | $ 191 | (107) |  | 29 |  | 191 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 16 |  | 95 |
Noncash or Part Noncash Divestiture, Amount of Consideration Received | [12] |  |  |  |  |  |  |  |  |  | 37 |
Dividends on stock compensation |  |  |  |  |  |  | 6 |  | 7 |  | 6 |
Acquisition of land |  |  |  |  |  |  | 3 |  |  |  |  |
Assumption of member purchase liability |  |  |  |  |  |  | 154 |  | 208 |  | 6,923 |
Dissolution of financing trust due to long-term debt retirement |  |  |  |  |  |  |  |  | 8 |  |  |
Fair value adjustment of long-term debt due to retirement |  |  |  |  |  |  |  |  | (5) |  |  |
Allowance for Doubtful Accounts Receivable, Write-offs |  |  |  |  |  |  |  |  |  |  | 5 |
Fitzpatrick [Member] |  |  |  |  |  |  |  |  |  |  |  |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired | [17] |  |  |  |  |  |  |  |  |  | (54) |
Exelon Generation Co L L C [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | 1,748 |  | 1,409 |  | 1,835 |
Amortization of Regulatory Asset |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of Intangible Assets |  |  |  |  |  |  | 63 |  | 83 |  | 79 |
Amortization of Nuclear Fuel Lease | [1] |  |  |  |  |  | 1,115 |  | 1,096 |  | 1,159 |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 489 |  | 468 |  | 446 |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 3,415 |  | 3,056 |  | 3,519 |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 369 |  | 391 |  | 339 |
Income taxes (net of refunds) |  |  |  |  |  |  | 746 |  | 337 |  | 435 |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 204 |  | 227 |  | 218 |
Gain (loss) on equity method investments |  |  |  |  |  |  | 30 |  | 33 |  | 25 |
Provision for uncollectible accounts |  |  |  |  |  |  | 48 |  | 38 |  | 19 |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 20 |  | 51 |  | 6 |
Other decommissioning related-activity |  |  |  |  |  |  | (2) | [3] | (313) | [4] | (384) | [5]
Energy-related options |  |  |  |  |  |  | 10 | [6] | 7 | [7] | (11) | [8]
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt fair value adjustment |  |  |  |  |  |  | (12) |  | (12) |  | (11) |
Merger-related commitments |  |  |  |  |  |  | 0 | [9] | 0 | [10] | 53 | [11],[12]
Severance costs |  |  |  |  |  |  | 9 |  | 31 |  | 22 |
Amortization of debt costs |  |  |  |  |  |  | 14 |  | 37 |  | 17 |
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 35 |  |  |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 44 |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  |  |  |  |  |  | 36 |
Asset Retirement Obligation, Revision of Estimate |  | 203 | $ 84 |  | $ 138 |  | 0 |  |  |  | 0 |
Other |  |  |  |  |  |  | (23) |  | 4 |  | 25 |
Total other non-cash operating activities |  |  |  |  |  |  | 298 |  | 112 |  | 15 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | (199) |  | 73 |  | 50 |
Change in PPE related to ARO update |  | (130) |  |  |  | 191 | (130) |  | 29 |  | 191 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 16 |  | 95 |
Noncash or Part Noncash Divestiture, Amount of Consideration Received | [12] |  |  |  |  |  |  |  |  |  | 37 |
Acquisition of land |  |  |  |  |  |  | 0 |  |  |  |  |
Assumption of member purchase liability |  |  |  |  |  |  | 154 |  | 208 |  | 293 |
Fair value of pension and OPEB obligation transferred in connection with FitzPatrick |  |  |  |  |  |  |  |  | 33 |  |  |
Exelon Generation Co L L C [Member] | noncash member [Member] |  |  |  |  |  |  |  |  |  |  |  |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Fair value of net assets contributed (distributed) in connection with the PHI merger, net of cash |  |  |  |  |  |  |  |  |  |  | 119 |
Exelon Generation Co L L C [Member] | Fitzpatrick [Member] |  |  |  |  |  |  |  |  |  |  |  |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired | [17] |  |  |  |  |  |  |  |  |  | (54) |
Commonwealth Edison Co [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | 820 |  | 777 |  | 708 |
Amortization of Regulatory Asset |  |  |  |  |  |  | 120 |  | 73 |  | 67 |
Amortization of Intangible Assets |  |  |  |  |  |  | 7 |  | 7 |  | 7 |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 940 |  | 850 |  | 775 |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 332 |  | 307 |  | 298 |
Income taxes (net of refunds) |  |  |  |  |  |  | (153) |  | 83 |  | (444) |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 177 |  | 176 |  | 166 |
Gain (loss) on equity method investments |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Provision for uncollectible accounts |  |  |  |  |  |  | 40 |  | 34 |  | 41 |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 3 |  | 3 |  | 4 |
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 3 |  | 4 |  | 4 |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt fair value adjustment |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Merger-related commitments |  |  |  |  |  |  | 0 | [9] | 0 | [10] | 0 | [11],[12]
Severance costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt costs |  |  |  |  |  |  | 5 |  | 5 |  | 4 |
Discrete impacts from EIMA and FEJA |  |  |  |  |  |  | 28 | [13] | (52) | [14] | 8 | [15]
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 12 |  |  |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 0 |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  |  |  |  |  |  | 0 |
Asset Retirement Obligation, Revision of Estimate |  |  |  |  |  |  | 0 |  |  |  | 0 |
Other |  |  |  |  |  |  | (14) |  | 6 |  | (12) |
Total other non-cash operating activities |  |  |  |  |  |  | 242 |  | 164 |  | 215 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | 11 |  | (61) |  | (91) |
Change in PPE related to ARO update |  | 7 |  |  |  | 0 | 7 |  | 0 |  | 0 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 0 |  | 0 |
Contribution of Property |  |  |  |  |  |  |  |  | 21 | [18] | 158 | [19]
Acquisition of land |  |  |  |  |  |  | 0 |  |  |  |  |
PECO Energy Co [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | 274 |  | 261 |  | 244 |
Amortization of Regulatory Asset |  |  |  |  |  |  | 27 |  | 25 |  | 26 |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 301 |  | 286 |  | 270 |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 125 |  | 103 |  | 104 |
Income taxes (net of refunds) |  |  |  |  |  |  | (2) |  | 47 |  | 64 |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 18 |  | 29 |  | 33 |
Gain (loss) on equity method investments |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Provision for uncollectible accounts |  |  |  |  |  |  | 33 |  | 26 |  | 30 |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 1 |  | 1 |  | 1 |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt fair value adjustment |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Merger-related commitments |  |  |  |  |  |  | 0 | [9] | 0 | [10] | 0 | [11],[12]
Severance costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt costs |  |  |  |  |  |  | 2 |  | 2 |  | 3 |
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 0 |  |  |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 0 |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  |  |  |  |  |  | 1 |
Asset Retirement Obligation, Revision of Estimate |  |  |  |  |  |  | 0 |  |  |  | 0 |
Other |  |  |  |  |  |  | (3) |  | (4) |  | (3) |
Total other non-cash operating activities |  |  |  |  |  |  | 51 |  | 54 |  | 65 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | (12) |  | 22 |  | (11) |
Change in PPE related to ARO update |  | 0 |  |  |  | 0 | 0 |  | 0 |  | 0 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 0 |  | 0 |
Acquisition of land |  |  |  |  |  |  | 0 |  |  |  |  |
Baltimore Gas and Electric Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | 335 |  | 312 |  | 299 |
Amortization of Regulatory Asset |  |  |  |  |  |  | 148 |  | 161 |  | 124 |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 483 |  | 473 |  | 423 |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 94 |  | 96 |  | 92 |
Income taxes (net of refunds) |  |  |  |  |  |  | 14 |  | (2) |  | 31 |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 59 |  | 62 |  | 67 |
Gain (loss) on equity method investments |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Provision for uncollectible accounts |  |  |  |  |  |  | 10 |  | 8 |  | 1 |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 0 |  | 7 |  | 81 |
Amortization of debt fair value adjustment |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Merger-related commitments |  |  |  |  |  |  | 0 | [9] | 0 | [10] | 0 | [11],[12]
Severance costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt costs |  |  |  |  |  |  | 1 |  | 2 |  | 1 |
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 0 |  |  |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 0 |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  |  |  |  |  |  | 0 |
Baltimore City conduit lease settlement |  |  |  |  |  |  |  |  |  |  | (28) |
Cash Working Capital order |  |  |  |  |  |  |  |  |  |  | (13) |
Asset Retirement Obligation, Revision of Estimate |  |  |  |  |  |  | 0 |  |  |  | 0 |
Other |  |  |  |  |  |  | (12) |  | (14) |  | (21) |
Total other non-cash operating activities |  |  |  |  |  |  | 58 |  | 65 |  | 88 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | 50 |  | 23 |  | (86) |
Change in PPE related to ARO update |  | 1 |  |  |  | 0 | 1 |  | 0 |  | 0 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 0 |  | 0 |
Acquisition of land |  |  |  |  |  |  | 0 |  |  |  |  |
Dissolution of financing trust due to long-term debt retirement |  |  |  |  |  |  |  |  | 8 |  |  |
Pepco Holdings LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | 480 |  | 457 |  |  |
Amortization of Regulatory Asset |  |  |  |  |  |  | 260 |  | 218 |  |  |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 0 |  | 0 |  |  |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 740 |  | 675 |  |  |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 250 |  | 236 |  |  |
Income taxes (net of refunds) |  |  |  |  |  |  | (32) |  | (144) |  |  |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 67 |  | 94 |  |  |
Gain (loss) on equity method investments |  |  |  |  |  |  | (1) |  | (1) |  |  |
Provision for uncollectible accounts |  |  |  |  |  |  | 28 |  | 19 |  |  |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 0 |  | 2 |  |  |
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 4 |  | 4 |  |  |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 14 |  | (17) |  |  |
Amortization of debt fair value adjustment |  |  |  |  |  |  | (3) |  | (6) |  |  |
Merger-related commitments |  |  |  |  |  |  | 5 | [9] | (8) | [10] |  |
Severance costs |  |  |  |  |  |  | 0 |  | 3 |  |  |
Amortization of debt costs |  |  |  |  |  |  | 3 |  | 4 |  |  |
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 8 |  |  |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 0 |  |  |
Other |  |  |  |  |  |  | 6 |  | (28) |  |  |
Total other non-cash operating activities |  |  |  |  |  |  | 143 |  | 58 |  |  |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | 93 |  | (12) |  |  |
Change in PPE related to ARO update |  | 15 |  |  |  |  | 15 |  | 0 |  |  |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 0 |  |  |
Acquisition of land |  |  |  |  |  |  | 3 |  |  |  |  |
Pepco Holdings LLC [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  | 325 |  |  |  |  |  |
Amortization of Regulatory Asset |  |  |  |  |  | 190 |  |  |  |  |  |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  | 0 |  |  |  |  |  |
Total depreciation, amortization and accretion |  |  |  |  |  | 515 |  |  |  |  |  |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  | 209 |  |  |  |  |  |
Income taxes (net of refunds) |  |  |  |  |  | 258 |  |  |  |  |  |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  | 86 |  |  |  |  |  |
Gain (loss) on equity method investments |  |  |  |  |  | 0 |  |  |  |  |  |
Provision for uncollectible accounts |  |  |  |  |  | 65 |  |  |  |  |  |
Provision for excess and obsolete inventory |  |  |  |  |  | 1 |  |  |  |  |  |
Amortization of regulatory asset related to debt costs |  |  |  |  |  | 3 |  |  |  |  |  |
Amortization of rate stabilization deferral |  |  |  |  |  | (5) |  |  |  |  |  |
Amortization of debt fair value adjustment |  |  |  |  |  | 0 |  |  |  |  |  |
Merger-related commitments | [11],[12] |  |  |  |  | 317 |  |  |  |  |  |
Severance costs |  |  |  |  |  | 56 |  |  |  |  |  |
Amortization of debt costs |  |  |  |  |  | 1 |  |  |  |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  | 0 |  |  |  |  |  |
Asset Retirement Obligation, Revision of Estimate |  |  |  |  |  | 2 | 20 |  |  |  |  |
Other |  |  |  |  |  | (11) |  |  |  |  |  |
Total other non-cash operating activities |  |  |  |  |  | 515 |  |  |  |  |  |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  | 21 |  |  |  |  |  |
Change in PPE related to ARO update |  |  |  |  |  | 0 |  |  |  |  | 0 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  | 0 |  |  |  |  |  |
Fair value of net assets contributed (distributed) in connection with the PHI merger, net of cash | [12],[20] |  |  |  |  | 127 |  |  |  |  |  |
Fair value of pension obligation transferred in connection with the PHI Merger, net of cash | [12],[20] |  |  |  |  | 53 |  |  |  |  |  |
Pepco Holdings LLC [Member] | Successor [Member] | noncash member [Member] |  |  |  |  |  |  |  |  |  |  |  |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Merger-related commitments |  |  |  |  |  | 33 |  |  |  |  |  |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Assumption of member purchase liability |  |  |  |  |  | 29 |  |  |  |  |  |
Pepco Holdings LLC [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  | $ 94 |  |  |  |  |  |  |  |
Amortization of Regulatory Asset |  |  |  | 58 |  |  |  |  |  |  |  |
Asset Retirement Obligation, Accretion Expense | [2] |  |  | 0 |  |  |  |  |  |  |  |
Total depreciation, amortization and accretion |  |  |  | 152 |  |  |  |  |  |  |  |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  | 43 |  |  |  |  |  |  |  |
Income taxes (net of refunds) |  |  |  | 11 |  |  |  |  |  |  |  |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  | 23 |  |  |  |  |  |  |  |
Gain (loss) on equity method investments |  |  |  | 0 |  |  |  |  |  |  |  |
Provision for uncollectible accounts |  |  |  | 16 |  |  |  |  |  |  |  |
Provision for excess and obsolete inventory |  |  |  | 1 |  |  |  |  |  |  |  |
Stock-based compensation costs |  |  |  | 3 |  |  |  |  |  |  |  |
Amortization of regulatory asset related to debt costs |  |  |  | 1 |  |  |  |  |  |  |  |
Amortization of rate stabilization deferral |  |  |  | 5 |  |  |  |  |  |  |  |
Amortization of debt fair value adjustment |  |  |  | 0 |  |  |  |  |  |  |  |
Merger-related commitments | [11],[12] |  |  | 0 |  |  |  |  |  |  |  |
Severance costs |  |  |  | 0 |  |  |  |  |  |  |  |
Amortization of debt costs |  |  |  | 0 |  |  |  |  |  |  |  |
Lower of cost or market inventory adjustment |  |  |  | 0 |  |  |  |  |  |  |  |
Asset Retirement Obligation, Revision of Estimate |  |  |  | 0 |  |  |  |  |  |  |  |
Other |  |  |  | (3) |  |  |  |  |  |  |  |
Total other non-cash operating activities |  |  |  | 46 |  |  |  |  |  |  |  |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  | 11 |  |  |  |  |  |  |  |
Change in PPE related to ARO update |  |  |  | 0 |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  | 0 |  |  |  |  |  |  |  |
Potomac Electric Power Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | 218 |  | 203 |  | 175 |
Amortization of Regulatory Asset |  |  |  |  |  |  | 167 |  | 118 |  | 120 |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 385 |  | 321 |  | 295 |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 123 |  | 114 |  | 118 |
Income taxes (net of refunds) |  |  |  |  |  |  | 41 |  | (104) |  | 216 |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 15 |  | 25 |  | 31 |
Gain (loss) on equity method investments |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Provision for uncollectible accounts |  |  |  |  |  |  | 11 |  | 8 |  | 29 |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 0 |  | 1 |  | 3 |
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 2 |  | 2 |  | 2 |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 14 |  | (17) |  | (12) |
Amortization of debt fair value adjustment |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Merger-related commitments |  |  |  |  |  |  | 0 | [9] | (6) | [10] | 125 | [11],[12]
Severance costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt costs |  |  |  |  |  |  | 2 |  | 2 |  | 0 |
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 8 |  |  |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 0 |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  |  |  |  |  |  | 0 |
Asset Retirement Obligation, Revision of Estimate |  |  |  |  |  |  | 22 |  |  |  | 0 |
Other |  |  |  |  |  |  | (6) |  | (13) |  | (3) |
Total other non-cash operating activities |  |  |  |  |  |  | 60 |  | (6) |  | 175 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | 20 |  | 5 |  | 27 |
Change in PPE related to ARO update |  | 12 |  |  |  | 0 | 12 |  | 0 |  | 0 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 0 |  | 0 |
Acquisition of land |  |  |  |  |  |  | 0 |  |  |  |  |
Potomac Electric Power Company [Member] | noncash member [Member] |  |  |  |  |  |  |  |  |  |  |  |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Merger-related commitments |  |  |  |  |  |  |  |  |  |  | 33 |
Delmarva Power & Light Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | 131 |  | 124 |  | 110 |
Amortization of Regulatory Asset |  |  |  |  |  |  | 51 |  | 43 |  | 47 |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 182 |  | 167 |  | 157 |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 56 |  | 49 |  | 47 |
Income taxes (net of refunds) |  |  |  |  |  |  | (6) |  | (49) |  | 115 |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 6 |  | 13 |  | 18 |
Gain (loss) on equity method investments |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Provision for uncollectible accounts |  |  |  |  |  |  | 6 |  | 3 |  | 23 |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 0 |  | 1 |  | 1 |
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 1 |  | 1 |  | 1 |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 0 |  | 0 |  | 2 |
Amortization of debt fair value adjustment |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Merger-related commitments |  |  |  |  |  |  | 5 | [9] | (2) | [10] | 82 | [11],[12]
Severance costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 0 |  |  |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 0 |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  |  |  |  |  |  | 0 |
Asset Retirement Obligation, Revision of Estimate |  |  |  |  |  |  | (1) |  |  |  | 1 |
Other |  |  |  |  |  |  | 7 |  | (7) |  | (14) |
Total other non-cash operating activities |  |  |  |  |  |  | 24 |  | 9 |  | 114 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | 22 |  | 4 |  | (12) |
Change in PPE related to ARO update |  | 2 |  |  |  | 0 | 2 |  | 0 |  | 0 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 0 |  | 0 |
Acquisition of land |  |  |  |  |  |  | 0 |  |  |  |  |
Atlantic City Electric Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  | 94 |  | 89 |  | 82 |
Amortization of Regulatory Asset |  |  |  |  |  |  | 42 |  | 57 |  | 83 |
Asset Retirement Obligation, Accretion Expense | [2] |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total depreciation, amortization and accretion |  |  |  |  |  |  | 136 |  | 146 |  | 165 |
Cash paid (refunded) during the year: |  |  |  |  |  |  |  |  |  |  |  |
Interest (net of amount capitalized) |  |  |  |  |  |  | 61 |  | 59 |  | 62 |
Income taxes (net of refunds) |  |  |  |  |  |  | (12) |  | (2) |  | 200 |
Other non-cash operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Pension and non-pension postretirement benefit costs |  |  |  |  |  |  | 12 |  | 13 |  | 15 |
Gain (loss) on equity method investments |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Provision for uncollectible accounts |  |  |  |  |  |  | 11 |  | 8 |  | 32 |
Provision for excess and obsolete inventory |  |  |  |  |  |  | 0 |  | 0 |  | 1 |
Amortization of regulatory asset related to debt costs |  |  |  |  |  |  | 1 |  | 1 |  | 1 |
Amortization of rate stabilization deferral |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt fair value adjustment |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Merger-related commitments |  |  |  |  |  |  | 0 | [9] | 0 | [10] | 110 | [11],[12]
Severance costs |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Amortization of debt costs |  |  |  |  |  |  | 1 |  | 1 |  | 0 |
Vacation accrual adjustment | [16] |  |  |  |  |  |  |  | 0 |  |  |
Change in environmental liabilities |  |  |  |  |  |  |  |  | 0 |  |  |
Lower of cost or market inventory adjustment |  |  |  |  |  |  |  |  |  |  | 0 |
Asset Retirement Obligation, Revision of Estimate |  |  |  |  |  |  | (1) |  |  |  | 2 |
Other |  |  |  |  |  |  | 0 |  | (6) |  | (6) |
Total other non-cash operating activities |  |  |  |  |  |  | 24 |  | 17 |  | 155 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in capital expenditures not paid |  |  |  |  |  |  | 46 |  | (13) |  | 11 |
Change in PPE related to ARO update |  | $ 1 |  |  |  | 0 | 1 |  | 0 |  | 0 |
Noncash or Part Noncash Acquisition, Fixed Assets Acquired |  |  |  |  |  |  |  |  | 0 |  | 0 |
Acquisition of land |  |  |  |  |  |  | 3 |  |  |  |  |
Other Intangible Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 58 |  | 57 |  | 52 |
Other Intangible Assets [Member] | Exelon Generation Co L L C [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 49 |  | 48 |  | 44 |
Other Intangible Assets [Member] | Commonwealth Edison Co [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Other Intangible Assets [Member] | PECO Energy Co [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Other Intangible Assets [Member] | Baltimore Gas and Electric Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Other Intangible Assets [Member] | Pepco Holdings LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 0 |  | 0 |  |  |
Other Intangible Assets [Member] | Pepco Holdings LLC [Member] | Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  | $ 0 |  |  |  |  |  |
Other Intangible Assets [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  | $ 0 |  |  |  |  |  |  |  |
Other Intangible Assets [Member] | Potomac Electric Power Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Other Intangible Assets [Member] | Delmarva Power & Light Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Other Intangible Assets [Member] | Atlantic City Electric Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Intangible Assets |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Unamortized Energy Contracts [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Power Contracts Emission Credits | [21] |  |  |  |  |  | 14 |  | 35 |  | 35 |
Unamortized Energy Contracts [Member] | Exelon Generation Co L L C [Member] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Power Contracts Emission Credits | [21] |  |  |  |  |  | $ 14 |  | $ 35 |  | $ 35 |
[1] | Included in Purchased power and fuel expense in the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
[2] | Included in Operating and maintenance expense in the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
[3] | Includes the elimination of decommissioning-related activities for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.
[4] | {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOmVlYzRiNDIxOTkxNDRkN2ViNWYzYTRhOTVmMjFkNDYzfFRleHRTZWxlY3Rpb246ODE3Q0FGRTQ3ODgzNTMyQkFDNzc4ODYwRDFBNDI1OTMM}
[5] | Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.
[6] | Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.
[7] | Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.
[8] | Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.
[9] | See Note 5 - Mergers, Acquisitions and Dispositions for additional information.
[10] | See Note 5 - Mergers, Acquisitions and Dispositions for additional information.
[11] | Excludes $5 million of forgiveness of Accounts receivable related to merger commitments recorded in connection with the PHI Merger, the balance is included within Provision for uncollectible accounts.
[12] | See Note 5 - Mergers, Acquisitions and Dispositions for additional information.
[13] | Reflects the change in ComEd's distribution and energy efficiency formula rates. See Note 4 — Regulatory Matters for additional information.
[14] | Reflects the change in ComEd's distribution and energy efficiency formula rates . See Note 4 — Regulatory Matters for additional information.
[15] | Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through a pre-established performance-based formula rate. See Note 4 — Regulatory Matters for additional information.
[16] | On December 1, 2017, Exelon adopted a single, standard vacation accrual policy for all non-represented, non-craft (represented and craft policies remained unchanged) employees effective January 1, 2018. To reflect the new policy, Exelon recorded a one-time, $68 million pre-tax credit to expense to reverse 2018 vacation cost originally accrued throughout 2017 that will now be accrued ratably over the year in 2018.
[17] | Reflects the transfer of nuclear fuel to Entergy under the cost reimbursement provisions of the FitzPatrick acquisition agreements. See Note 5 - Mergers, Acquisitions and Dispositions for additional information.
[18] | See Note 14 — Income Taxes for additional information on the like-kind exchange tax position
[19] | See Note 14 — Income Taxes for additional information on the like-kind exchange tax position.
[20] | Immediately following closing of the PHI Merger, the net assets associated with PHI’s unregulated business interests were distributed by PHI to Exelon. Exelon contributed a portion of such net assets to Generation.
[21] | Included in Operating revenues or Purchased power and fuel in the Registrants’ Consolidated Statements of Operations and Comprehensive Income

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- Definition This item represents realized and unrealized gains (losses) for the period as a result of selling and holding marketable securities in nuclear decommissioning trust funds. Additionally, this item includes the elimination of operating revenues, asset retirement obligation accretion, asset retirement cost amortization, investment income and income taxes related to nuclear decommissioning trust fund activity. As a result of certain regulatory agreements for these nuclear decommissioning trust funds; upon completion of decommissioning activities, excess (shortfall of) funds will be refunded to (recovered from) rate payers through a regulated affiliate. Therefore, this activity is contractually eliminated within the income statement. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition The expense charged against earnings for the periodic recognition of capitalized nuclear fuel leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84164758&loc=d3e45031-112735 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 840 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77893457&loc=d3e56759-110438 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition The expense charged against earnings for the periodic recognition of capitalized costs related to purchasing power, fuel, or emission credits. These items may be purchased in one accounting period but are deducted from earnings over time through amortization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition The expense charged against earnings during the period to allocate the capitalized costs of regulatory assets over the periods expected to benefit from such costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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