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| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Common Stock Value | 11402.00 | 11379.00 | 11350.00 | 11847.00 | 12355.00 | 12576.00 | 12808.00 | 13029.00 | 13274.00 | 13255.00 | 13241.00 | 13212.00 | NA | NA | NA | NA | |
| dei: Entity Common Stock Shares Outstanding | NA | NA | NA | NA | NA | NA | NA | NA | NA | 327.02 | 326.85 | 326.70 | NA | NA | NA | NA | |
| Weighted Average Number Of Diluted Shares Outstanding | NA | 314.00 | 316.00 | 318.00 | NA | 323.00 | 325.00 | 328.00 | NA | 328.00 | 328.00 | 328.00 | NA | NA | NA | NA | |
| Weighted Average Number Of Shares Outstanding Basic | NA | 313.00 | 315.00 | 317.00 | NA | 322.00 | 324.00 | 328.00 | NA | 327.00 | 327.00 | 327.00 | NA | NA | NA | NA | |
| Earnings Per Share Basic | 2.71 | 3.83 | 2.58 | 2.79 | -0.10 | 2.27 | 2.57 | 0.29 | 0.10 | -0.57 | -0.34 | 0.32 | NA | NA | NA | NA | |
| Earnings Per Share Diluted | 2.72 | 3.82 | 2.58 | 2.78 | -0.10 | 2.26 | 2.56 | 0.29 | 0.10 | -0.57 | -0.34 | 0.32 | NA | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue From Contract With Customer Excluding Assessed Tax | 4526.00 | 4773.00 | 4406.00 | 5260.00 | 4996.00 | 5313.00 | 4701.00 | 5833.00 | 4464.00 | 6051.00 | 5465.00 | 5591.00 | 3137.00 | 4406.00 | 4153.00 | 5559.00 | |
| Revenue From Contract With Customer Including Assessed Tax | 5382.00 | 6550.00 | 5475.00 | 6161.00 | 5796.00 | 6111.00 | 5446.00 | 7565.00 | 7333.00 | 6051.00 | 5465.00 | 5431.00 | 5216.00 | 4082.00 | 3899.00 | 5264.00 | |
| Revenues | 5382.00 | 6550.00 | 5475.00 | 6161.00 | 5796.00 | 6111.00 | 5446.00 | 7565.00 | 7333.00 | 6051.00 | 5465.00 | 5591.00 | 5532.00 | 4406.00 | 4153.00 | 5559.00 | |
| Costs And Expenses | 4479.00 | 5085.00 | 4375.00 | 5348.00 | 5862.00 | 5134.00 | 4777.00 | 7560.00 | 7493.00 | 6091.00 | 5191.00 | 5172.00 | 5591.00 | 3465.00 | 4469.00 | 6672.00 | |
| Operating Income Loss | 972.00 | 1467.00 | 1100.00 | 813.00 | -67.00 | 977.00 | 669.00 | 31.00 | -172.00 | -41.00 | 272.00 | 435.00 | -2.00 | 1006.00 | -308.00 | -1042.00 | |
| Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments | 859.00 | 1645.00 | 964.00 | 1048.00 | 143.00 | 895.00 | 1171.00 | 238.00 | 147.00 | -312.00 | -438.00 | 61.00 | 160.00 | 814.00 | 124.00 | -947.00 | |
| Income Tax Expense Benefit | 6.00 | 449.00 | 154.00 | 165.00 | 182.00 | 205.00 | 342.00 | 131.00 | 116.00 | -123.00 | -328.00 | -53.00 | 117.00 | 177.00 | 110.00 | -179.00 | |
| Profit Loss | 850.00 | 1196.00 | 809.00 | 883.00 | -39.00 | 690.00 | 824.00 | 102.00 | 28.00 | -193.00 | -113.00 | -40.00 | 39.00 | 633.00 | 13.00 | -769.00 | |
| Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax | NA | 1.00 | 2.00 | NA | NA | NA | NA | NA | NA | -1.00 | NA | NA | NA | -1.00 | NA | NA | |
| Other Comprehensive Income Loss Net Of Tax | -168.00 | 27.00 | 19.00 | 11.00 | -394.00 | 3.00 | 8.00 | -48.00 | 209.00 | 23.00 | 24.00 | 21.00 | 0.00 | -4.00 | 2.00 | 1.00 | |
| Net Income Loss | 852.00 | 1200.00 | 814.00 | 883.00 | -37.00 | 731.00 | 833.00 | 96.00 | 34.00 | -188.00 | -111.00 | 106.00 | 42.00 | 607.00 | -61.00 | -793.00 | |
| Comprehensive Income Net Of Tax | 684.00 | 1227.00 | 833.00 | 894.00 | -431.00 | 734.00 | 841.00 | 48.00 | 243.00 | -165.00 | -87.00 | 127.00 | 42.00 | 603.00 | -59.00 | -792.00 |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Assets | 52926.00 | 51834.00 | 51340.00 | 52014.00 | 50758.00 | 48965.00 | 46559.00 | 46158.00 | 46909.00 | 46616.00 | 45333.00 | 46846.00 | 48086.00 | NA | NA | NA | |
| Liabilities | 39387.00 | 38893.00 | 39559.00 | 40454.00 | 39472.00 | 36965.00 | 34947.00 | 35072.00 | 35537.00 | 35447.00 | 33944.00 | 35341.00 | 36472.00 | NA | NA | NA | |
| Liabilities And Stockholders Equity | 52926.00 | 51834.00 | 51340.00 | 52014.00 | 50758.00 | 48965.00 | 46559.00 | 46158.00 | 46909.00 | 46616.00 | 45333.00 | 46846.00 | 48086.00 | NA | NA | NA | |
| Stockholders Equity | 13166.00 | 12570.00 | 11425.00 | 11199.00 | 10925.00 | 11666.00 | 11256.00 | 10728.00 | 11018.00 | 10803.00 | 11000.00 | 11105.00 | 11219.00 | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Assets Current | 10776.00 | 9270.00 | 7852.00 | 8460.00 | 8299.00 | 9902.00 | 7575.00 | 8108.00 | 9360.00 | 9853.00 | 8090.00 | 8767.00 | 7981.00 | NA | NA | NA | |
| Cash And Cash Equivalents At Carrying Value | 3022.00 | 1793.00 | 311.00 | 562.00 | 368.00 | 1889.00 | 269.00 | 237.00 | 422.00 | 1192.00 | 806.00 | 1605.00 | 504.00 | 1957.00 | 542.00 | 721.00 | |
| Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents | 3129.00 | 1882.00 | 383.00 | 645.00 | 454.00 | 1977.00 | 325.00 | 336.00 | 528.00 | 1303.00 | 926.00 | 1696.00 | 576.00 | 2019.00 | 601.00 | 762.00 | |
| Accounts Receivable Net Current | 3116.00 | 1208.00 | 1578.00 | 1855.00 | 1934.00 | 1541.00 | 1306.00 | 2147.00 | 2585.00 | 1819.00 | 1734.00 | 1936.00 | 1669.00 | NA | NA | NA | |
| Other Assets Current | 689.00 | 2819.00 | 2394.00 | 2066.00 | 1655.00 | 2179.00 | 1742.00 | 1067.00 | 1026.00 | 1607.00 | 1317.00 | 1238.00 | 1007.00 | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Property Plant And Equipment Gross | 39323.00 | NA | NA | NA | 39539.00 | NA | NA | NA | 36548.00 | NA | NA | NA | 35485.00 | NA | NA | NA | |
| Accumulated Depreciation Depletion And Amortization Property Plant And Equipment | 18088.00 | 17972.00 | 17618.00 | 17476.00 | 17423.00 | 17265.00 | 16923.00 | 16861.00 | 16726.00 | 16574.00 | 16165.00 | 16007.00 | 15873.00 | NA | NA | NA | |
| Amortization Of Intangible Assets | 42.00 | 6.00 | 6.00 | 6.00 | 41.00 | 6.00 | 6.00 | 5.00 | 41.00 | 5.00 | 5.00 | 10.00 | 43.00 | 12.00 | 13.00 | 12.00 | |
| Property Plant And Equipment Net | 21235.00 | 20892.00 | 21973.00 | 22446.00 | 22116.00 | 20849.00 | 20239.00 | 20074.00 | 19822.00 | 19705.00 | 19739.00 | 19837.00 | 19612.00 | NA | NA | NA | |
| Long Term Investments | 640.00 | 494.00 | 584.00 | 623.00 | 563.00 | 727.00 | 647.00 | 223.00 | 202.00 | 193.00 | 211.00 | 217.00 | 174.00 | NA | NA | NA | |
| Goodwill | 420.00 | 420.00 | 420.00 | 425.00 | 425.00 | NA | NA | NA | 47.00 | NA | NA | NA | NA | NA | NA | NA | |
| Finite Lived Intangible Assets Net | 236.00 | NA | NA | NA | 336.00 | NA | NA | NA | 343.00 | NA | NA | NA | 381.00 | NA | NA | NA | |
| Other Assets Noncurrent | 2178.00 | 2297.00 | 2610.00 | 2332.00 | 1910.00 | 1901.00 | 2167.00 | 1977.00 | 2106.00 | 2137.00 | 2137.00 | 2152.00 | 1717.00 | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Liabilities Current | 6846.00 | 5452.00 | 5801.00 | 5922.00 | 6319.00 | 5263.00 | 5225.00 | 5947.00 | 7839.00 | 7887.00 | 5878.00 | 6434.00 | 7996.00 | NA | NA | NA | |
| Long Term Debt Current | 1028.00 | NA | NA | NA | 121.00 | NA | NA | NA | 143.00 | NA | NA | NA | 1220.00 | NA | NA | NA | |
| Accounts Payable Current | 2369.00 | 1302.00 | 1360.00 | 1309.00 | 1302.00 | 1317.00 | 1260.00 | 1558.00 | 2828.00 | 2597.00 | 2160.00 | 1847.00 | 1757.00 | NA | NA | NA | |
| Accounts Payable And Accrued Liabilities Current | 3943.00 | 2685.00 | 2422.00 | 2417.00 | 2612.00 | 2252.00 | NA | NA | 3734.00 | NA | NA | NA | NA | NA | NA | NA | |
| Accrued Income Taxes Current | 232.00 | 219.00 | 201.00 | 370.00 | 399.00 | NA | 210.00 | 327.00 | 257.00 | 401.00 | 349.00 | 421.00 | 272.00 | NA | NA | NA | |
| Other Liabilities Current | 332.00 | 322.00 | 371.00 | 312.00 | 338.00 | 403.00 | 324.00 | 342.00 | 344.00 | 318.00 | 325.00 | 317.00 | 311.00 | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Long Term Debt | 8474.00 | NA | NA | NA | 7677.00 | NA | NA | NA | 4650.00 | NA | NA | NA | NA | NA | NA | NA | |
| Long Term Debt Noncurrent | 7384.00 | 7378.00 | 7409.00 | 8352.00 | 7496.00 | 7512.00 | 6156.00 | 5763.00 | 4466.00 | 4480.00 | 4507.00 | 4548.00 | 4575.00 | NA | NA | NA | |
| Debt And Capital Lease Obligations | 7384.00 | NA | NA | NA | 7496.00 | NA | NA | NA | 4466.00 | NA | NA | NA | 4894.00 | NA | NA | NA | |
| Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent | 1875.00 | NA | NA | NA | 1802.00 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Minority Interest | 373.00 | 371.00 | 356.00 | 361.00 | 361.00 | 334.00 | 356.00 | 358.00 | 354.00 | 366.00 | 389.00 | 400.00 | 395.00 | NA | NA | NA | |
| Other Liabilities Noncurrent | 1219.00 | 2028.00 | 1640.00 | 1393.00 | 1125.00 | 1196.00 | 1123.00 | 1258.00 | 1178.00 | 1251.00 | 1210.00 | 1300.00 | 1133.00 | NA | NA | NA | |
| Operating Lease Liability Noncurrent | 511.00 | NA | NA | NA | 583.00 | NA | NA | NA | 643.00 | NA | NA | NA | 705.00 | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stockholders Equity | 13166.00 | 12570.00 | 11425.00 | 11199.00 | 10925.00 | 11666.00 | 11256.00 | 10728.00 | 11018.00 | 10803.00 | 11000.00 | 11105.00 | 11219.00 | NA | NA | NA | |
| Stockholders Equity Including Portion Attributable To Noncontrolling Interest | 13539.00 | 12941.00 | 11781.00 | 11560.00 | 11286.00 | 12000.00 | 11612.00 | 11086.00 | 11372.00 | 11169.00 | 11389.00 | 11505.00 | 11614.00 | NA | NA | NA | |
| Common Stock Value | 11402.00 | 11379.00 | 11350.00 | 11847.00 | 12355.00 | 12576.00 | 12808.00 | 13029.00 | 13274.00 | 13255.00 | 13241.00 | 13212.00 | NA | NA | NA | NA | |
| Retained Earnings Accumulated Deficit | 4066.00 | 3325.00 | 2236.00 | 1532.00 | 761.00 | 887.00 | 248.00 | -493.00 | -496.00 | -483.00 | -249.00 | -91.00 | NA | NA | NA | NA | |
| Accumulated Other Comprehensive Income Loss Net Of Tax | -2302.00 | -2134.00 | -2161.00 | -2180.00 | -2191.00 | -1797.00 | -1800.00 | -1808.00 | -1760.00 | -1969.00 | -1992.00 | -2016.00 | -31.00 | NA | NA | NA | |
| Minority Interest | 373.00 | 371.00 | 356.00 | 361.00 | 361.00 | 334.00 | 356.00 | 358.00 | 354.00 | 366.00 | 389.00 | 400.00 | 395.00 | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Operating Activities | -1016.00 | -112.00 | -613.00 | -723.00 | -3182.00 | -993.00 | -192.00 | -934.00 | -2422.00 | -1194.00 | -88.00 | 1351.00 | -2312.00 | 1331.00 | 1255.00 | -1612.00 | |
| Net Cash Provided By Used In Investing Activities | 2372.00 | 2406.00 | 1820.00 | 830.00 | 852.00 | 2008.00 | -48.00 | 219.00 | 1233.00 | 1170.00 | 297.00 | 404.00 | 643.00 | 533.00 | 267.00 | 1839.00 | |
| Net Cash Provided By Used In Financing Activities | -109.00 | -795.00 | -1469.00 | 84.00 | 807.00 | 637.00 | 229.00 | 523.00 | 414.00 | 401.00 | -979.00 | -635.00 | 226.00 | -446.00 | -1683.00 | 208.00 |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Operating Activities | -1016.00 | -112.00 | -613.00 | -723.00 | -3182.00 | -993.00 | -192.00 | -934.00 | -2422.00 | -1194.00 | -88.00 | 1351.00 | -2312.00 | 1331.00 | 1255.00 | -1612.00 | |
| Net Income Loss | 852.00 | 1200.00 | 814.00 | 883.00 | -37.00 | 731.00 | 833.00 | 96.00 | 34.00 | -188.00 | -111.00 | 106.00 | 42.00 | 607.00 | -61.00 | -793.00 | |
| Profit Loss | 850.00 | 1196.00 | 809.00 | 883.00 | -39.00 | 690.00 | 824.00 | 102.00 | 28.00 | -193.00 | -113.00 | -40.00 | 39.00 | 633.00 | 13.00 | -769.00 | |
| Increase Decrease In Other Operating Capital Net | 3407.00 | 2842.00 | 2533.00 | 2392.00 | 2914.00 | 2441.00 | 1690.00 | 761.00 | 1718.00 | 1810.00 | 1037.00 | 909.00 | 691.00 | 818.00 | 620.00 | 1411.00 | |
| Increase Decrease In Inventories | 130.00 | 27.00 | 56.00 | -114.00 | 30.00 | 34.00 | 44.00 | -168.00 | 62.00 | 78.00 | 170.00 | -82.00 | 39.00 | 33.00 | 46.00 | -50.00 |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Investing Activities | 2372.00 | 2406.00 | 1820.00 | 830.00 | 852.00 | 2008.00 | -48.00 | 219.00 | 1233.00 | 1170.00 | 297.00 | 404.00 | 643.00 | 533.00 | 267.00 | 1839.00 | |
| Payments To Acquire Property Plant And Equipment | 729.00 | 552.00 | 546.00 | 738.00 | 687.00 | 399.00 | 676.00 | 660.00 | 599.00 | 290.00 | 390.00 | 410.00 | 243.00 | 367.00 | 337.00 | 382.00 |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Financing Activities | -109.00 | -795.00 | -1469.00 | 84.00 | 807.00 | 637.00 | 229.00 | 523.00 | 414.00 | 401.00 | -979.00 | -635.00 | 226.00 | -446.00 | -1683.00 | 208.00 | |
| Payments Of Dividends Common Stock | 111.00 | 111.00 | 110.00 | 112.00 | 89.00 | 92.00 | 92.00 | 93.00 | 46.00 | 46.00 | 47.00 | 46.00 | NA | NA | NA | NA | |
| Payments For Repurchase Of Common Stock | 0.00 | 0.00 | 500.00 | 499.00 | 242.00 | 251.00 | 268.00 | 231.00 | NA | NA | NA | NA | NA | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenues | 5382.00 | 6550.00 | 5475.00 | 6161.00 | 5796.00 | 6111.00 | 5446.00 | 7565.00 | 7333.00 | 6051.00 | 5465.00 | 5591.00 | 5532.00 | 4406.00 | 4153.00 | 5559.00 | |
| Constellation Energy Generation L L C | 5382.00 | 6550.00 | 5475.00 | 6161.00 | 5796.00 | 6111.00 | 5446.00 | 7565.00 | 7333.00 | 6051.00 | 5465.00 | 5591.00 | 5532.00 | 4406.00 | 4153.00 | 5559.00 | |
| Material Reconciling Items, | NA | 533.00 | 580.00 | 1162.00 | 979.00 | 605.00 | 656.00 | 1485.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Material Reconciling Items, Product And Service Other | NA | 666.00 | 368.00 | 205.00 | 205.00 | 315.00 | 352.00 | 1308.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity | NA | 5351.00 | 4527.00 | 4794.00 | 4612.00 | 5191.00 | 4438.00 | 4772.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Intersegment Elimination, Electricity, Constellation E R C O T | NA | 1.00 | 2.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Intersegment Elimination, Electricity, Constellation Mid Atlantic | NA | 2.00 | 3.00 | -2.00 | -5.00 | -4.00 | -10.00 | -31.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Intersegment Elimination, Electricity, Constellation Midwest | NA | 1.00 | 0.00 | 1.00 | 0.00 | 0.00 | 1.00 | 2.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Intersegment Elimination, Electricity, Constellation New York | NA | -4.00 | -6.00 | 15.00 | 14.00 | 4.00 | 3.00 | 34.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Intersegment Elimination, Electricity, Constellation Other Regions | NA | 0.00 | 1.00 | -15.00 | -10.00 | -1.00 | 5.00 | -6.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation E R C O T | NA | 522.00 | 355.00 | 320.00 | 289.00 | 558.00 | 327.00 | 168.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation Mid Atlantic | NA | 1601.00 | 1301.00 | 1244.00 | 1289.00 | 1415.00 | 1208.00 | 1276.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation Midwest | NA | 1274.00 | 1168.00 | 1093.00 | 1179.00 | 1117.00 | 1329.00 | 1030.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation New York | NA | 511.00 | 520.00 | 498.00 | 489.00 | 508.00 | 468.00 | 501.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation Other Regions | NA | 1443.00 | 1183.00 | 1639.00 | 1366.00 | 1593.00 | 1106.00 | 1797.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Electricity | NA | 5351.00 | 4527.00 | 4794.00 | 4612.00 | 5191.00 | 4438.00 | 4772.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Electricity, Constellation E R C O T | NA | 523.00 | 357.00 | 321.00 | 290.00 | 559.00 | 328.00 | 169.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Electricity, Constellation Mid Atlantic | NA | 1603.00 | 1304.00 | 1242.00 | 1284.00 | 1411.00 | 1198.00 | 1245.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Electricity, Constellation Midwest | NA | 1275.00 | 1168.00 | 1094.00 | 1179.00 | 1117.00 | 1330.00 | 1032.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Electricity, Constellation New York | NA | 507.00 | 514.00 | 513.00 | 503.00 | 512.00 | 471.00 | 535.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Electricity, Constellation Other Regions | NA | 1443.00 | 1184.00 | 1624.00 | 1356.00 | 1592.00 | 1111.00 | 1791.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Revenue From Contract With Customer Excluding Assessed Tax | 4526.00 | 4773.00 | 4406.00 | 5260.00 | 4996.00 | 5313.00 | 4701.00 | 5833.00 | 4464.00 | 6051.00 | 5465.00 | 5591.00 | 3137.00 | 4406.00 | 4153.00 | 5559.00 | |
| Material Reconciling Items, | NA | 184.00 | 231.00 | 608.00 | 465.00 | 220.00 | 280.00 | 895.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Material Reconciling Items, Product And Service Other | NA | 135.00 | 125.00 | 130.00 | 150.00 | 145.00 | 143.00 | 148.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity | NA | 4454.00 | 4050.00 | 4522.00 | 4381.00 | 4948.00 | 4278.00 | 4790.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation E R C O T | NA | 307.00 | 274.00 | 237.00 | 253.00 | 489.00 | 291.00 | 200.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation Mid Atlantic | NA | 1504.00 | 1297.00 | 1356.00 | 1313.00 | 1493.00 | 1235.00 | 1413.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation Midwest | NA | 958.00 | 993.00 | 1000.00 | 1139.00 | 1160.00 | 1352.00 | 1195.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation New York | NA | 472.00 | 463.00 | 492.00 | 486.00 | 522.00 | 438.00 | 464.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating, Electricity, Constellation Other Regions | NA | 1213.00 | 1023.00 | 1437.00 | 1190.00 | 1284.00 | 962.00 | 1518.00 | NA | NA | NA | NA | NA | NA | NA | NA | |
| Revenue From Contract With Customer Including Assessed Tax | 5382.00 | 6550.00 | 5475.00 | 6161.00 | 5796.00 | 6111.00 | 5446.00 | 7565.00 | 7333.00 | 6051.00 | 5465.00 | 5431.00 | 5216.00 | 4082.00 | 3899.00 | 5264.00 |
