EXELON CORP | 2013 | FY | 3


For the Year Ended December 31, 2013Exelon Generation ComEd PECO BGE
             
 Plant basis differences$ (11,612)$ (3,879)$ (3,523)$ (2,573)$ (1,538)
 Accrual based contracts  (214)  (214)   
 Derivatives and other financial instruments  (509)  (505)  (4)  
 Deferred pension and post-retirement obligation  1,489  (362)  (522)   (74)
 Nuclear decommissioning activities  (647)  (646)   
 Deferred debt refinancing costs  173  79  (21)  (3)  (5)
 Regulatory  (1,611)   (241)  42  (253)
 Tax loss carryforward  252  76  47  11  52
 Tax credit carryforward  534  534   
 Investment in CENG  (541)  (541)   
 Other, net  804  67  154  122  26
             
Deferred income tax liabilities (net)$ (11,882)$ (5,391)$ (4,110)$ (2,401)$ (1,792)
Unamortized investment tax credits  (490)  (454)  (22)  (3)  (6)
             
Total deferred income tax liabilities (net) and           
 unamortized investment tax credits$ (12,372)$ (5,845)$ (4,132)$ (2,404)$ (1,798)
             
For the Year Ended December 31, 2012Exelon Generation ComEd PECO BGE
             
 Plant basis differences$ (10,689)$ (3,545)$ (3,537)$ (2,437)$ (1,553)
 Accrual based contracts  (389)  (389)   
 Derivatives and other financial instruments  (392)  (479)  (4)  
 Deferred pension and post-retirement obligation  2,356  (439)  (598)  (11)  (12)
 Nuclear decommissioning activities  (604)  (604)   
 Deferred debt refinancing costs  (537)  163  (25)  (4)  (4)
 Regulatory  (1,857)   (116)  50  (253)
 Tax loss carryforward  421  226  32  14  105
 Tax credit carryforward  226  226   
 Investment in CENG  (405)  (419)   
 Other, net  701  9  83  100  67
             
Deferred income tax liabilities (net)$ (11,169)$ (5,251)$ (4,165)$ (2,288)$ (1,650)
Unamortized investment tax credits  (251)  (216)  (24)  (3)  (6)
             
Total deferred income tax liabilities (net) and           
 unamortized investment tax credits$ (11,420)$ (5,467)$ (4,189)$ (2,291)$ (1,656)

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