Consolidated Statements of Financial Position - DTE Energy Company (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Current Assets
Accounts receivable less allowance for doubtful accounts	$ 60	$ 70
Equity
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	207,745,154	207,171,582
Common stock, shares outstanding (in shares)	207,745,154	207,171,582