ComEd 2006 Annual Report Download - page 387

EXELON GENERATION COMPANY, LLC AND SUBSIDIARY COMPANIES
Schedule II – Valuation and Qualifying Accounts
(in millions)
Column A Column B Column C Column D Column E
Additions and adjustments
Description
Balance at
Beginning
of Year
Charged
to Cost
and
Expenses
Charged
to Other
Accounts Deductions
Balance at
End of Year
For The Year Ended December 31, 2006
Allowance for uncollectible accounts ........ $15 $ 2 $— $— $17
Deferred tax valuation allowance ........... 34 — (1) — 33
Reserve for obsolete materials ............. 23 1 — — 24
For The Year Ended December 31, 2005
Allowance for uncollectible accounts ........ $19 $— $ (2) $ (2) $15
Deferred tax valuation allowance ........... 13 — 21 — 34
Reserve for obsolete materials ............. 24 (1) — — 23
For The Year Ended December 31, 2004
Allowance for uncollectible accounts ........ $14 $ 2 $ 4 $ 1 $19
Deferred tax valuation allowance ........... 8 1 4 — 13
Reserve for obsolete materials ............. 9 18 — 3 24
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