v3.26.1
THE DTE ENERGY COMPANY MASTER PLAN TRUST (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
EBP Plans    
EBP, Master Trust [Line Items]    
Net Assets Available for Benefits $ 4,068,286 $ 3,630,826
EBP Plans | Plan's Interest in Master Trust Balances    
EBP, Master Trust [Line Items]    
Investments, at fair value:   3,573,248
Net Assets Available for Benefits 4,008,616  
EBP Plans | Plan's Interest in Master Trust Balances | Registered investment companies and other equities    
EBP, Master Trust [Line Items]    
Investments, at fair value: 385,424 342,446
EBP Plans | Plan's Interest in Master Trust Balances | DTE Energy common stock    
EBP, Master Trust [Line Items]    
Investments, at fair value: 583,339 571,040
EBP Plans | Plan's Interest in Master Trust Balances | Common/collective trusts    
EBP, Master Trust [Line Items]    
Investments, at fair value: 3,039,853 2,659,762
EBP Plans | Master Trust Balances    
EBP, Master Trust [Line Items]    
Investments, at fair value:   3,573,248
Net Assets Available for Benefits 4,008,616  
EBP Plans | Master Trust Balances | Registered investment companies and other equities    
EBP, Master Trust [Line Items]    
Investments, at fair value: 385,424 342,446
EBP Plans | Master Trust Balances | DTE Energy common stock    
EBP, Master Trust [Line Items]    
Investments, at fair value: 583,339 571,040
EBP Plans | Master Trust Balances | Common/collective trusts    
EBP, Master Trust [Line Items]    
Investments, at fair value: 3,039,853 2,659,762
EBP 002    
EBP, Master Trust [Line Items]    
Net Assets Available for Benefits 2,615,135 2,333,908
EBP 002 | Plan's Interest in Master Trust Balances    
EBP, Master Trust [Line Items]    
Investments, at fair value:   2,306,894
Net Assets Available for Benefits 2,587,738  
EBP 002 | Plan's Interest in Master Trust Balances | Registered investment companies and other equities    
EBP, Master Trust [Line Items]    
Investments, at fair value: 270,040 241,228
EBP 002 | Plan's Interest in Master Trust Balances | DTE Energy common stock    
EBP, Master Trust [Line Items]    
Investments, at fair value: 318,832 309,089
EBP 002 | Plan's Interest in Master Trust Balances | Common/collective trusts    
EBP, Master Trust [Line Items]    
Investments, at fair value: 1,998,866 1,756,577
EBP 003    
EBP, Master Trust [Line Items]    
Net Assets Available for Benefits 1,065,819 963,271
EBP 003 | Plan's Interest in Master Trust Balances    
EBP, Master Trust [Line Items]    
Investments, at fair value:   939,261
Net Assets Available for Benefits 1,040,458  
EBP 003 | Plan's Interest in Master Trust Balances | Registered investment companies and other equities    
EBP, Master Trust [Line Items]    
Investments, at fair value: 84,178 73,397
EBP 003 | Plan's Interest in Master Trust Balances | DTE Energy common stock    
EBP, Master Trust [Line Items]    
Investments, at fair value: 205,896 207,768
EBP 003 | Plan's Interest in Master Trust Balances | Common/collective trusts    
EBP, Master Trust [Line Items]    
Investments, at fair value: 750,384 658,096
EBP 004    
EBP, Master Trust [Line Items]    
Net Assets Available for Benefits 266,814 228,963
EBP 004 | Plan's Interest in Master Trust Balances    
EBP, Master Trust [Line Items]    
Investments, at fair value:   224,567
Net Assets Available for Benefits 262,152  
EBP 004 | Plan's Interest in Master Trust Balances | Registered investment companies and other equities    
EBP, Master Trust [Line Items]    
Investments, at fair value: 19,822 17,973
EBP 004 | Plan's Interest in Master Trust Balances | DTE Energy common stock    
EBP, Master Trust [Line Items]    
Investments, at fair value: 36,072 33,714
EBP 004 | Plan's Interest in Master Trust Balances | Common/collective trusts    
EBP, Master Trust [Line Items]    
Investments, at fair value: 206,258 172,880
EBP 006    
EBP, Master Trust [Line Items]    
Net Assets Available for Benefits 120,518 104,684
EBP 006 | Plan's Interest in Master Trust Balances    
EBP, Master Trust [Line Items]    
Investments, at fair value:   102,526
Net Assets Available for Benefits 118,268  
EBP 006 | Plan's Interest in Master Trust Balances | Registered investment companies and other equities    
EBP, Master Trust [Line Items]    
Investments, at fair value: 11,384 9,848
EBP 006 | Plan's Interest in Master Trust Balances | DTE Energy common stock    
EBP, Master Trust [Line Items]    
Investments, at fair value: 22,539 20,469
EBP 006 | Plan's Interest in Master Trust Balances | Common/collective trusts    
EBP, Master Trust [Line Items]    
Investments, at fair value: $ 84,345 $ 72,209