| Operating revenues | — | — | — |
| Utility operations | 7,990a | 7,466a | 8,243a |
| Non-utility operations | 4,467a | 5,279a | 10,985a |
| Operating expenses | — | — | — |
| Fuel, purchased power, and gas - utility | -1,978a | -1,845a | -2,505a |
| Fuel, purchased power, gas, and other - non-utility | -3,879a | -4,413a | -10,655a |
| Operation and maintenance | -2,262a | -2,160a | -2,400a |
| Depreciation and amortization | -1,732a | -1,606a | -1,468a |
| Taxes other than income | -487a | -462a | -457a |
| Asset (gains) losses and impairments, net | 28a | 16a | -5a |
| Operating income | 2,091a | 2,243a | 1,748a |
| Other (income) and deductions | — | — | — |
| Interest expense | -951a | -791a | -675a |
| Interest income | -136a | -57a | -46a |
| Non-operating retirement benefits, net | | 9a | -1a |
| Other income | -167a | -102a | -58a |
| Other expenses | -73a | -36a | -66a |
| Income before income taxes | 1,370a | 1,566a | 1,112a |
| Income tax expense (benefit) | -34a | -169a | -29a |
| Net income attributable to DTE Energy Company | 1,404a | 1,397a | 1,083a |