Consolidated Statements of Financial Position (Unaudited) (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Allowance for doubtful accounts	$ 51	$ 54
Shareholder’s Equity
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	400,000,000us-gaap_CommonStockSharesAuthorized	400,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares)	179,330,405us-gaap_CommonStockSharesIssued	176,991,231us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares)	179,330,405us-gaap_CommonStockSharesOutstanding	176,991,231us-gaap_CommonStockSharesOutstanding
DTE Electric
Allowance for doubtful accounts	$ 31	$ 29
Shareholder’s Equity
Common stock, par value (in dollars per share)	$ 10	$ 10
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	138,632,324	138,632,324
Common stock, shares outstanding (in shares)	138,632,324	138,632,324

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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