Citigroup Inc.

Intangible AssetsThe components of intangible assets were as follows:In millions of dollarsGrosscarryingamountAccumulatedamortizationDecember 31, 2010 December 31, 2009NetcarryingamountGrosscarryingamountAccumulatedamortizationNetcarryingamountPurchased credit card relationships $ 7,796 $ 5,048 $ 2,748 $ 8,148 $4,838 $ 3,310Core deposit intangibles 1,442 959 483 1,373 791 582Other customer relationships 702 195 507 675 176 499Present value of future profits 241 114 127 418 280 138Indefinite-lived intangible assets 550 — 550 569 — 569Other (1) 4,723 1,634 3,089 4,977 1,361 3,616Intangible assets (excluding MSRs) $15,454 $ 7,950 $ 7,504 $16,160 $7,446 $ 8,714Mortgage servicing rights (MSRs) 4,554 — 4,554 6,530 — 6,530Total intangible assets $20,008 $ 7,950 $12,058 $22,690 $7,446 $15,244(1) Includes contract-related intangible assets.Intangible assets amortization expense was $976 million, $1,179 million and $1,427 million for 2010, 2009 and 2008, respectively. Intangible assetsamortization expense is estimated to be $862 million in 2011, $838 million in 2012, $825 million in 2013, $779 million in 2014, and $697 million in 2015.The changes in intangible assets during 2010 were as follows:In millions of dollarsNet carryingamount atDecember 31,2009Acquisitions/divestitures Amortization ImpairmentsFXandother (1)Net carryingamount atDecember 31,2010Purchased credit card relationships $ 3,310 $(53) $(486) $ (39) $ 16 $ 2,748Core deposit intangibles 582 — (108) — 9 483Other customer relationships 499 — (56) — 64 507Present value of future profits 138 — (13) — 2 127Indefinite-lived intangible assets 569 (46) — — 27 550Other 3,616 — (313) (32) (182) 3,089Intangible assets (excluding MSRs) $ 8,714 $(99) $(976) $ (71) $ (64) $ 7,504Mortgage servicing rights (MSRs) (2) 6,530 4,554Total intangible assets $15,244 $12,058(1) Includes foreign exchange translation and purchase accounting adjustments.(2) See Note 22 to the Consolidated Financial Statements for the roll-forward of MSRs.225