Notes to the consolidated financial statements of Aegon N.V.  Note 21 222 21 Intangible assets Net book value Goodwill VOBA Future  servicing  rights Software Other Total At January 1, 2012 259 2,000 397 26 13 2,695 At December 31, 2012 266 1,777 383 50 9 2,485 At December 31, 2013 211 1,742 239 50 4 2,246 Cost At January 1, 2013 393 7,085 621 266 80 8,445 Additions - 4 - 20 - 24 Acquisitions through business combinations 12 3 - - - 15 Capitalized subsequent expenditure - - - 2 - 2 Disposals - - (1) (2) - (3) Disposal of a business - - - (1) (8) (9) Net exchange differences (17) (334) (23) (9) (3) (385) Other movements - - - 1 - 2 At December 31, 2013 388 6,758 596 278 69 8,090 Accumulated amortization, depreciation  and impairment losses At January 1, 2013 127 5,308 238 216 71 5,960 Amortization / depreciation through income  statement - 109 19 15 1 145 Shadow accounting adjustments - (152) - - - (152) Disposals - - - (2) - (2) Disposal of a business - - - (1) (4) (5) Impairment losses 53 - 110 4 1 168 Net exchange differences (4) (250) (9) (6) (3) (271) Other movements - - - 2 - 1 At December 31, 2013 177 5,017 358 228 66 5,845 Cost At January 1, 2012 388 7,149 616 232 80 8,465 Additions - - - 31 1 32 Acquisitions through business combinations 1 5 - - - 6 Capitalized subsequent expenditure - - - 4 - 4 Disposals - - - (8) - (8) Net exchange differences 4 (60) 5 8 (1) (44) Other movements - (9) - (1) - (10) At December 31, 2012 393 7,085 621 266 80 8,445 Accumulated amortization, depreciation  and impairment losses At January 1, 2012 129 5,149 219 206 67 5,770 Amortization / depreciation through income  statement - 142 20 11 4 177 Shadow accounting adjustments - 85 - - - 85 Disposals - - - (7) - (7) Net exchange differences (2) (59) (1) 7 - (55) Other movements - (9) - (1) - (10) At December 31, 2012 127 5,308 238 216 71 5,960 Annual Report 2013