XML 76 R60.htm IDEA: XBRL DOCUMENT v3.25.1
Fair Value (Assets and Liabilities Recorded at Fair Value on a Recurring Basis) (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Derivative assets    
Derivative assets, gross $ 837 $ 694
Derivative asset, netting (599) (447)
Derivative liabilities    
Derivative liabilities, gross (758) (605)
Derivative liability, netting 538 430
DTE Electric    
Assets    
Nuclear decommissioning trusts 2,246 2,256
Current liabilities    
Derivative liabilities    
Derivative liabilities, gross (546) (441)
Noncurrent liabilities    
Derivative liabilities    
Derivative liabilities, gross (212) (164)
Natural gas    
Derivative assets    
Derivative assets, gross 461 428
Derivative asset, netting (327) (285)
Derivative liabilities    
Derivative liabilities, gross (395) (410)
Derivative liability, netting 280 272
Electricity    
Derivative assets    
Derivative assets, gross 304 187
Derivative asset, netting (214) (116)
Derivative liabilities    
Derivative liabilities, gross (310) (150)
Derivative liability, netting 206 114
Environmental & Other    
Derivative assets    
Derivative assets, gross 68 58
Derivative asset, netting (58) (46)
Derivative liabilities    
Derivative liabilities, gross (52) (44)
Derivative liability, netting 52 44
Cash equivalents | DTE Electric    
Assets    
Nuclear decommissioning trusts 28 26
Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 344 349
Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 231 228
Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 986 1,003
Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 657 650
Recurring    
Assets    
Cash equivalents 21 11
Derivative assets    
Derivative asset, netting (599) (447)
Derivative assets, net 238 247
Total Assets 2,612 2,622
Derivative liabilities    
Derivative liability, netting 538 430
Total Liabilities (220) (175)
Net Assets (Liabilities) at end of period 2,392 2,447
Net Assets at end of period, netting (61) (17)
Recurring | DTE Electric    
Assets    
Cash equivalents 19 8
Derivative assets    
Total Assets 2,313 2,318
Recurring | Current assets    
Derivative assets    
Derivative asset, netting (447) (326)
Total Assets 181 173
Recurring | Current assets | DTE Electric    
Derivative assets    
Total Assets 22 17
Recurring | Noncurrent assets    
Derivative assets    
Derivative asset, netting (152) (121)
Total Assets 2,431 2,449
Recurring | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 2,291 2,301
Recurring | Current liabilities    
Derivative liabilities    
Derivative liability, netting 401 323
Total Liabilities (145) (118)
Recurring | Noncurrent liabilities    
Derivative liabilities    
Derivative liability, netting 137 107
Total Liabilities (75) (57)
Recurring | Restricted cash    
Assets    
Cash equivalents 19 8
Recurring | Restricted cash | DTE Electric    
Assets    
Cash equivalents 19 8
Recurring | Natural gas    
Derivative assets    
Derivative asset, netting (327) (285)
Derivative assets, net 134 143
Derivative liabilities    
Derivative liability, netting 280 272
Derivative liabilities, net (115) (138)
Recurring | Electricity    
Derivative assets    
Derivative asset, netting (214) (116)
Derivative assets, net 90 71
Derivative liabilities    
Derivative liability, netting 206 114
Derivative liabilities, net (104) (36)
Recurring | Environmental & Other    
Derivative assets    
Derivative asset, netting (58) (46)
Derivative assets, net 10 12
Derivative liabilities    
Derivative liability, netting 52 44
Derivative liabilities, net 0 0
Recurring | Other contracts    
Derivative assets    
Derivative assets, net 4 21
Derivative liabilities    
Derivative liabilities, net (1) (1)
Recurring | Derivative assets — FTRs | DTE Electric    
Derivative assets    
Derivative assets, net 3 9
Recurring | Cash equivalents    
Assets    
Nuclear decommissioning trusts 28 26
Other investments 32 29
Recurring | Cash equivalents | DTE Electric    
Assets    
Nuclear decommissioning trusts 28 26
Other investments 19 19
Recurring | Private equity and other    
Assets    
Nuclear decommissioning trusts 344 349
Recurring | Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 344 349
Recurring | Hedge funds and similar investments    
Assets    
Nuclear decommissioning trusts 231 228
Recurring | Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 231 228
Recurring | Equity securities    
Assets    
Nuclear decommissioning trusts 986 1,003
Other investments 67 72
Recurring | Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 986 1,003
Other investments 26 26
Recurring | Fixed income securities    
Assets    
Nuclear decommissioning trusts 657 650
Other investments 8 7
Recurring | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 657 650
Recurring | Level 1    
Assets    
Cash equivalents 21 11
Derivative assets    
Derivative assets, gross 446 310
Total Assets 1,736 1,602
Derivative liabilities    
Total Liabilities (345) (290)
Net Assets (Liabilities) at end of period 1,391 1,312
Recurring | Level 1 | DTE Electric    
Assets    
Cash equivalents 19 8
Derivative assets    
Total Assets 1,226 1,226
Recurring | Level 1 | Current assets    
Derivative assets    
Total Assets 354 223
Recurring | Level 1 | Current assets | DTE Electric    
Derivative assets    
Total Assets 19 8
Recurring | Level 1 | Noncurrent assets    
Derivative assets    
Total Assets 1,382 1,379
Recurring | Level 1 | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 1,207 1,218
Recurring | Level 1 | Current liabilities    
Derivative liabilities    
Total Liabilities (255) (219)
Recurring | Level 1 | Noncurrent liabilities    
Derivative liabilities    
Total Liabilities (90) (71)
Recurring | Level 1 | Natural gas    
Derivative assets    
Derivative assets, gross 330 242
Derivative liabilities    
Derivative liabilities, gross (233) (217)
Recurring | Level 1 | Electricity    
Derivative assets    
Derivative assets, gross 112 67
Derivative liabilities    
Derivative liabilities, gross (108) (71)
Recurring | Level 1 | Environmental & Other    
Derivative assets    
Derivative assets, gross 4 1
Derivative liabilities    
Derivative liabilities, gross (4) (2)
Recurring | Level 1 | Other contracts    
Derivative assets    
Derivative assets, gross 0 0
Derivative liabilities    
Derivative liabilities, gross 0 0
Recurring | Level 1 | Derivative assets — FTRs | DTE Electric    
Derivative assets    
Derivative assets, net 0 0
Recurring | Level 1 | Cash equivalents    
Assets    
Nuclear decommissioning trusts 28 26
Other investments 32 29
Recurring | Level 1 | Cash equivalents | DTE Electric    
Assets    
Nuclear decommissioning trusts 28 26
Other investments 19 19
Recurring | Level 1 | Private equity and other    
Assets    
Nuclear decommissioning trusts 16 16
Recurring | Level 1 | Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 16 16
Recurring | Level 1 | Hedge funds and similar investments    
Assets    
Nuclear decommissioning trusts 154 151
Recurring | Level 1 | Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 154 151
Recurring | Level 1 | Equity securities    
Assets    
Nuclear decommissioning trusts 836 856
Other investments 67 72
Recurring | Level 1 | Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 836 856
Other investments 26 26
Recurring | Level 1 | Fixed income securities    
Assets    
Nuclear decommissioning trusts 128 124
Other investments 8 7
Recurring | Level 1 | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 128 124
Recurring | Level 2    
Assets    
Cash equivalents 0 0
Derivative assets    
Derivative assets, gross 277 218
Total Assets 710 648
Derivative liabilities    
Total Liabilities (210) (162)
Net Assets (Liabilities) at end of period 500 486
Recurring | Level 2 | DTE Electric    
Assets    
Cash equivalents 0 0
Derivative assets    
Total Assets 433 430
Recurring | Level 2 | Current assets    
Derivative assets    
Total Assets 218 170
Recurring | Level 2 | Current assets | DTE Electric    
Derivative assets    
Total Assets 0 0
Recurring | Level 2 | Noncurrent assets    
Derivative assets    
Total Assets 492 478
Recurring | Level 2 | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 433 430
Recurring | Level 2 | Current liabilities    
Derivative liabilities    
Total Liabilities (160) (129)
Recurring | Level 2 | Noncurrent liabilities    
Derivative liabilities    
Total Liabilities (50) (33)
Recurring | Level 2 | Natural gas    
Derivative assets    
Derivative assets, gross 33 81
Derivative liabilities    
Derivative liabilities, gross (64) (70)
Recurring | Level 2 | Electricity    
Derivative assets    
Derivative assets, gross 179 69
Derivative liabilities    
Derivative liabilities, gross (98) (52)
Recurring | Level 2 | Environmental & Other    
Derivative assets    
Derivative assets, gross 61 47
Derivative liabilities    
Derivative liabilities, gross (47) (39)
Recurring | Level 2 | Other contracts    
Derivative assets    
Derivative assets, gross 4 21
Derivative liabilities    
Derivative liabilities, gross (1) (1)
Recurring | Level 2 | Derivative assets — FTRs | DTE Electric    
Derivative assets    
Derivative assets, net 0 0
Recurring | Level 2 | Cash equivalents    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 2 | Cash equivalents | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 2 | Private equity and other    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Level 2 | Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Level 2 | Hedge funds and similar investments    
Assets    
Nuclear decommissioning trusts 16 16
Recurring | Level 2 | Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 16 16
Recurring | Level 2 | Equity securities    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 2 | Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 2 | Fixed income securities    
Assets    
Nuclear decommissioning trusts 417 414
Other investments 0 0
Recurring | Level 2 | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 417 414
Recurring | Level 3    
Assets    
Cash equivalents 0 0
Derivative assets    
Derivative assets, gross 114 166
Total Assets 114 166
Derivative liabilities    
Total Liabilities (203) (153)
Net Assets (Liabilities) at end of period (89) 13
Recurring | Level 3 | DTE Electric    
Assets    
Cash equivalents 0 0
Derivative assets    
Total Assets 3 9
Recurring | Level 3 | Current assets    
Derivative assets    
Total Assets 56 106
Recurring | Level 3 | Current assets | DTE Electric    
Derivative assets    
Total Assets 3 9
Recurring | Level 3 | Noncurrent assets    
Derivative assets    
Total Assets 58 60
Recurring | Level 3 | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 0 0
Recurring | Level 3 | Current liabilities    
Derivative liabilities    
Total Liabilities (131) (93)
Recurring | Level 3 | Noncurrent liabilities    
Derivative liabilities    
Total Liabilities (72) (60)
Recurring | Level 3 | Natural gas    
Derivative assets    
Derivative assets, gross 98 105
Derivative liabilities    
Derivative liabilities, gross (98) (123)
Recurring | Level 3 | Electricity    
Derivative assets    
Derivative assets, gross 13 51
Derivative liabilities    
Derivative liabilities, gross (104) (27)
Recurring | Level 3 | Environmental & Other    
Derivative assets    
Derivative assets, gross 3 10
Derivative liabilities    
Derivative liabilities, gross (1) (3)
Recurring | Level 3 | Other contracts    
Derivative assets    
Derivative assets, gross 0 0
Derivative liabilities    
Derivative liabilities, gross 0 0
Recurring | Level 3 | Derivative assets — FTRs | DTE Electric    
Derivative assets    
Derivative assets, net 3 9
Recurring | Level 3 | Cash equivalents    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 3 | Cash equivalents | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 3 | Private equity and other    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Level 3 | Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Level 3 | Hedge funds and similar investments    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Level 3 | Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Level 3 | Equity securities    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 3 | Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 3 | Fixed income securities    
Assets    
Nuclear decommissioning trusts 0 0
Other investments 0 0
Recurring | Level 3 | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Other    
Derivative assets    
Total Assets 651 653
Derivative liabilities    
Net Assets (Liabilities) at end of period 651 653
Recurring | Other | DTE Electric    
Derivative assets    
Total Assets 651 653
Recurring | Other | Noncurrent assets    
Derivative assets    
Total Assets 651 653
Recurring | Other | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 651 653
Recurring | Other | Private equity and other    
Assets    
Nuclear decommissioning trusts 328 333
Recurring | Other | Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 328 333
Recurring | Other | Hedge funds and similar investments    
Assets    
Nuclear decommissioning trusts 61 61
Recurring | Other | Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 61 61
Recurring | Other | Equity securities    
Assets    
Nuclear decommissioning trusts 150 147
Recurring | Other | Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 150 147
Recurring | Other | Fixed income securities    
Assets    
Nuclear decommissioning trusts 112 112
Recurring | Other | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts $ 112 $ 112