11. Intangible assets

Clients

Natural environment

Public affairs

Investors

Local communities

Employees

Social contribution



      As at December 31, 2016 As at December 31, 2015
Development costs 2 2
Goodwill 9 286
Software 73 93
Other licenses and patents  132 127
Purchase of right of perpetual usufruct of land 64 61
Other intangible assets 134 135
Intangible assets not-commissioned to use 239 200
CARRYING AMOUNT OF INTANGIBLE ASSETS 653 904
note_11_table_1_pge.xlsx
     

Changes in intangible assets

  Development costs Goodwill Software Other licenses and patents Purchase of right of perpetual usufruct of land Other intangible assets Intangible assets not-commissioned to use Total
GROSS BOOK VALUE
AS AT JANUARY 1, 2016 19 286 430 223 71 242 201 1,472
Capital expenditures - - - - - - 135 135
Transfer of non-commissioned intangible assets - - 24 53 1 11 (89) -
Liquidation, disposal - - (6) (3) (1) - - (10)
Other (1) (277) - 1 3 3 (1) (272)
AS AT DECEMBER 31, 2016 18 9 448 274 74 256 246 1,325
ACCUMULATED AMORTIZATION AND IMPAIRMENT LOSSES
AS AT JANUARY 1, 2016 17 - 337 96 10 107 1 568
Amortization 1 - 44 48 1 9 - 103
Impairment allowances - 277 - - - 6 8 291
Liquidation, disposal - - (6) (3) - - - (9)
Other (2) (277) - 1 (1) - (2) (281)
AS AT DECEMBER 31, 2016 16 - 375 142 10 122 7 672
CARRYING AMOUNT AS AT DECEMBER 31, 2016 2 9 73 132 64 134 239 653
note_11_table_2_pge.xlsx
 
  Development costs Goodwill Software Other licenses and patents Purchase of right of perpetual usufruct of land Other intangible assets Intangible assets not-commissioned to use Total
GROSS BOOK VALUE                
AS AT JANUARY 1, 2015 19 286 382 149 64 228 121 1,249
Capital expenditures - - 1 - - - 231 232
Transfer of non-commissioned intangible assets - - 69 72 1 9 (151) -
Liquidation, disposal (1) - (21) - - - (1) (23)
Other 1 - (1) 2 6 5 1 14
AS AT DECEMBER 31, 2015 19 286 430 223 71 242 201 1,472
ACCUMULATED AMORTIZATION AND IMPAIRMENT LOSSES            
AS AT JANUARY 1, 2015 16 - 319 55 8 85 3 486
Amortization 1 - 39 40 1 8 - 89
Impairment allowances - - - - - 16 - 16
Liquidation, disposal (1) - (21) - - - - (22)
Other 1 - - 1 1 (2) (2) (1)
AS AT DECEMBER 31, 2015 17 - 337 96 10 107 1 568
CARRYING AMOUNT AS AT DECEMBER 31, 2015 2 286 93 127 61 135 200 904
note_11_table_3_pge.xlsx
 

Goodwill

Evaluation of recoverable amount of goodwill has been described in note 3 of these consolidated financial statements.