Consolidated Statements of Financial Position (Unaudited) - DTE Energy Company (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Current Assets
Accounts receivable less allowance for doubtful accounts	$ 68	$ 60
Equity
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	208,028,313	207,745,154
Common stock, shares outstanding (in shares)	208,028,313	207,745,154