XML 74 R58.htm IDEA: XBRL DOCUMENT v3.23.1
Fair Value (Assets and Liabilities Recorded at Fair Value on a Recurring Basis) (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Derivative assets    
Derivative assets, gross $ 1,239 $ 1,922
Derivative asset, netting (965) (1,489)
Derivative liabilities    
Derivative liabilities, gross (1,357) (2,169)
Derivative liability, netting 1,037 1,512
DTE Electric    
Assets    
Nuclear decommissioning trusts 1,896 1,825
Current liabilities    
Derivative liabilities    
Derivative liabilities, gross (920) (1,535)
Noncurrent liabilities    
Derivative liabilities    
Derivative liabilities, gross (437) (634)
Natural gas    
Derivative assets    
Derivative assets, gross 500 744
Derivative asset, netting (382) (649)
Derivative liabilities    
Derivative liabilities, gross (589) (1,018)
Derivative liability, netting 419 645
Electricity    
Derivative assets    
Derivative assets, gross 510 963
Derivative asset, netting (358) (643)
Derivative liabilities    
Derivative liabilities, gross (521) (935)
Derivative liability, netting 381 665
Environmental & Other    
Derivative assets    
Derivative assets, gross 226 213
Derivative asset, netting (225) (196)
Derivative liabilities    
Derivative liabilities, gross (239) (214)
Derivative liability, netting 237 201
Cash equivalents | DTE Electric    
Assets    
Nuclear decommissioning trusts 53 42
Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 269 262
Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 122 119
Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 879 839
Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 573 563
Recurring    
Assets    
Cash equivalents 110 10
Derivative assets    
Derivative asset, netting (965) (1,489)
Derivative assets, net 274 433
Total Assets 2,404 2,403
Derivative liabilities    
Derivative liability, netting 1,037 1,512
Total Liabilities (320) (657)
Net Assets (Liabilities) at end of period 2,084 1,746
Net Assets (Liabilities) at end of period, netting 72 23
Recurring | DTE Electric    
Assets    
Cash equivalents 77 9
Derivative assets    
Total Assets 2,003 1,872
Recurring | Current assets    
Derivative assets    
Derivative asset, netting (745) (1,189)
Total Assets 316 338
Recurring | Current assets | DTE Electric    
Derivative assets    
Total Assets 78 20
Recurring | Noncurrent assets    
Derivative assets    
Derivative asset, netting (220) (300)
Total Assets 2,088 2,065
Recurring | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 1,925 1,852
Recurring | Current liabilities    
Derivative liabilities    
Derivative liability, netting 777 1,193
Total Liabilities (143) (342)
Recurring | Noncurrent liabilities    
Derivative liabilities    
Derivative liability, netting 260 319
Total Liabilities (177) (315)
Recurring | Restricted cash    
Assets    
Cash equivalents 22 10
Recurring | Restricted cash | DTE Electric    
Assets    
Cash equivalents 21 9
Recurring | Natural gas    
Derivative assets    
Derivative asset, netting (382) (649)
Derivative assets, net 118 95
Derivative liabilities    
Derivative liability, netting 419 645
Derivative liabilities, net (170) (373)
Recurring | Electricity    
Derivative assets    
Derivative asset, netting (358) (643)
Derivative assets, net 152 320
Derivative liabilities    
Derivative liability, netting 381 665
Derivative liabilities, net (140) (270)
Recurring | Environmental & Other    
Derivative assets    
Derivative asset, netting (225) (196)
Derivative assets, net 1 17
Derivative liabilities    
Derivative liability, netting 237 201
Derivative liabilities, net (2) (13)
Recurring | Other Contract    
Derivative assets    
Derivative asset, netting 0 (1)
Derivative assets, net 3 1
Derivative liabilities    
Derivative liability, netting 0 1
Derivative liabilities, net (8) (1)
Recurring | Derivative assets — FTRs | DTE Electric    
Derivative assets    
Derivative assets, net 1 11
Recurring | Cash equivalents    
Assets    
Nuclear decommissioning trusts 53 42
Other investments 60 72
Recurring | Cash equivalents | DTE Electric    
Assets    
Nuclear decommissioning trusts 53 42
Other investments 11 11
Recurring | Private equity and other    
Assets    
Nuclear decommissioning trusts 269 262
Recurring | Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 269 262
Recurring | Hedge funds and similar investments    
Assets    
Nuclear decommissioning trusts 122 119
Recurring | Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 122 119
Recurring | Equity securities    
Assets    
Nuclear decommissioning trusts 879 839
Other investments 57 56
Recurring | Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 879 839
Other investments 18 16
Recurring | Fixed income securities    
Assets    
Nuclear decommissioning trusts 573 563
Other investments 7 7
Recurring | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 573 563
Recurring | Level 1    
Assets    
Cash equivalents 110 10
Derivative assets    
Derivative assets, gross 209 426
Total Assets 1,431 1,507
Derivative liabilities    
Total Liabilities (228) (297)
Net Assets (Liabilities) at end of period 1,203 1,210
Recurring | Level 1 | DTE Electric    
Assets    
Cash equivalents 77 9
Derivative assets    
Total Assets 1,094 972
Recurring | Level 1 | Current assets    
Derivative assets    
Total Assets 280 360
Recurring | Level 1 | Current assets | DTE Electric    
Derivative assets    
Total Assets 77 9
Recurring | Level 1 | Noncurrent assets    
Derivative assets    
Total Assets 1,151 1,147
Recurring | Level 1 | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 1,017 963
Recurring | Level 1 | Current liabilities    
Derivative liabilities    
Total Liabilities (203) (273)
Recurring | Level 1 | Noncurrent liabilities    
Derivative liabilities    
Total Liabilities (25) (24)
Recurring | Level 1 | Natural gas    
Derivative assets    
Derivative assets, gross 209 426
Derivative liabilities    
Derivative liabilities, gross (228) (297)
Recurring | Level 1 | Electricity    
Derivative assets    
Derivative assets, gross 0 0
Derivative liabilities    
Derivative liabilities, gross 0 0
Recurring | Level 1 | Environmental & Other    
Derivative assets    
Derivative assets, gross 0 0
Derivative liabilities    
Derivative liabilities, gross 0 0
Recurring | Level 1 | Other Contract    
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 53 42
Other investments 60 72
Recurring | Level 1 | Cash equivalents | DTE Electric    
Assets    
Nuclear decommissioning trusts 53 42
Other investments 11 11
Recurring | Level 1 | Private equity and other    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Level 1 | Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 0 0
Recurring | Level 1 | Hedge funds and similar investments    
Assets    
Nuclear decommissioning trusts 81 78
Recurring | Level 1 | Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 81 78
Recurring | Level 1 | Equity securities    
Assets    
Nuclear decommissioning trusts 738 701
Other investments 57 56
Recurring | Level 1 | Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 738 701
Other investments 18 16
Recurring | Level 1 | Fixed income securities    
Assets    
Nuclear decommissioning trusts 116 115
Other investments 7 7
Recurring | Level 1 | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 116 115
Recurring | Level 2    
Assets    
Cash equivalents 0 0
Derivative assets    
Derivative assets, gross 782 1,106
Total Assets 1,190 1,506
Derivative liabilities    
Total Liabilities (783) (1,205)
Net Assets (Liabilities) at end of period 407 301
Recurring | Level 2 | DTE Electric    
Assets    
Cash equivalents 0 0
Derivative assets    
Total Assets 408 400
Recurring | Level 2 | Current assets    
Derivative assets    
Total Assets 601 881
Recurring | Level 2 | Current assets | DTE Electric    
Derivative assets    
Total Assets 0 0
Recurring | Level 2 | Noncurrent assets    
Derivative assets    
Total Assets 589 625
Recurring | Level 2 | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 408 400
Recurring | Level 2 | Current liabilities    
Derivative liabilities    
Total Liabilities (546) (876)
Recurring | Level 2 | Noncurrent liabilities    
Derivative liabilities    
Total Liabilities (237) (329)
Recurring | Level 2 | Natural gas    
Derivative assets    
Derivative assets, gross 161 183
Derivative liabilities    
Derivative liabilities, gross (169) (331)
Recurring | Level 2 | Electricity    
Derivative assets    
Derivative assets, gross 395 720
Derivative liabilities    
Derivative liabilities, gross (368) (659)
Recurring | Level 2 | Environmental & Other    
Derivative assets    
Derivative assets, gross 223 201
Derivative liabilities    
Derivative liabilities, gross (238) (213)
Recurring | Level 2 | Other Contract    
Derivative assets    
Derivative assets, gross 3 2
Derivative liabilities    
Derivative liabilities, gross (8) (2)
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 41 41
Recurring | Level 2 | Hedge funds and similar investments | DTE Electric    
Assets    
Nuclear decommissioning trusts 41 41
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 367 359
Other investments 0 0
Recurring | Level 2 | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 367 359
Recurring | Level 3    
Assets    
Cash equivalents 0 0
Derivative assets    
Derivative assets, gross 248 390
Total Assets 248 390
Derivative liabilities    
Total Liabilities (346) (667)
Net Assets (Liabilities) at end of period (98) (277)
Recurring | Level 3 | DTE Electric    
Assets    
Cash equivalents 0 0
Derivative assets    
Total Assets 1 11
Recurring | Level 3 | Current assets    
Derivative assets    
Total Assets 180 286
Recurring | Level 3 | Current assets | DTE Electric    
Derivative assets    
Total Assets 1 11
Recurring | Level 3 | Noncurrent assets    
Derivative assets    
Total Assets 68 104
Recurring | Level 3 | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 0 0
Recurring | Level 3 | Current liabilities    
Derivative liabilities    
Total Liabilities (171) (386)
Recurring | Level 3 | Noncurrent liabilities    
Derivative liabilities    
Total Liabilities (175) (281)
Recurring | Level 3 | Natural gas    
Derivative assets    
Derivative assets, gross 130 135
Derivative liabilities    
Derivative liabilities, gross (192) (390)
Recurring | Level 3 | Electricity    
Derivative assets    
Derivative assets, gross 115 243
Derivative liabilities    
Derivative liabilities, gross (153) (276)
Recurring | Level 3 | Environmental & Other    
Derivative assets    
Derivative assets, gross 3 12
Derivative liabilities    
Derivative liabilities, gross (1) (1)
Recurring | Level 3 | Other Contract    
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 1 11
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 500 489
Derivative liabilities    
Net Assets (Liabilities) at end of period 500 489
Recurring | Other | DTE Electric    
Derivative assets    
Total Assets 500 489
Recurring | Other | Noncurrent assets    
Derivative assets    
Total Assets 500 489
Recurring | Other | Noncurrent assets | DTE Electric    
Derivative assets    
Total Assets 500 489
Recurring | Other | Private equity and other    
Assets    
Nuclear decommissioning trusts 269 262
Recurring | Other | Private equity and other | DTE Electric    
Assets    
Nuclear decommissioning trusts 269 262
Recurring | Other | Equity securities    
Assets    
Nuclear decommissioning trusts 141 138
Recurring | Other | Equity securities | DTE Electric    
Assets    
Nuclear decommissioning trusts 141 138
Recurring | Other | Fixed income securities    
Assets    
Nuclear decommissioning trusts 90 89
Recurring | Other | Fixed income securities | DTE Electric    
Assets    
Nuclear decommissioning trusts $ 90 $ 89