Citigroup Inc.

21. CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)Changes in each component of Accumulated other comprehensive income (loss) for the three-year period ended December 31, 2010 are as follows:In millions of dollarsNetunrealizedgains (losses)on investmentsecuritiesForeigncurrencytranslationadjustment,net ofhedgesCash flowhedgesPensionliabilityadjustmentsAccumulatedothercomprehensiveincome (loss)Balance at January 1, 2008 $ 471 $ (772) $(3,163) $(1,196) $ (4,660)Change in net unrealized gains (losses) on investment securities, net of taxes (11,422) — — — (11,422)Reclassification adjustment for net losses included in net income, net of taxes 1,304 — — — 1,304Foreign currency translation adjustment, net of taxes (1) — (6,972) — — (6,972)Cash flow hedges, net of taxes (2) — — (2,026) — (2,026)Pension liability adjustment, net of taxes (3) — — — (1,419) (1,419)Change $ (10,118) $ (6,972) $(2,026) $(1,419) $(20,535)Balance at December 31, 2008 $ (9,647) $(7,744) $(5,189) $(2,615) $(25,195)Cumulative effect of accounting change (ASC 320-10-35/FSP FAS 115-2and FAS 124-2) (413) — — — (413)Balance at January 1, 2009 $(10,060) $(7,744) $(5,189) $(2,615) $(25,608)Change in net unrealized gains (losses) on investment securities, net of taxes (4) 5,268 — — — 5,268Reclassification adjustment for net losses included in net income, net of taxes 445 — — — 445Foreign currency translation adjustment, net of taxes (1) — (203) — — (203)Cash flow hedges, net of taxes (2) — — 2,007 — 2,007Pension liability adjustment, net of taxes (3) — — — (846) (846)Change $ 5,713 $ (203) $ 2,007 $ (846) $ 6,671Balance at December 31, 2009 $ (4,347) $(7,947) $(3,182) $(3,461) $(18,937)Change in net unrealized gains (losses) on investment securities, net of taxes (4) 2,609 — — — 2,609Reclassification adjustment for net gains included in net income, net of taxes (657) — — — (657)Foreign currency translation adjustment, net of taxes (1) — 820 — — 820Cash flow hedges, net of taxes (2) — — 532 — 532Pension liability adjustment, net of taxes (3) — — — (644) (644)Change $ 1,952 $ 820 $ 532 $ (644) 2,660Balance at December 31, 2010 $ (2,395) $(7,127) $(2,650) $(4,105) $(16,277)(1) Reflects, among other items: the movements in the British pound, Euro, Japanese yen, Korean won, Polish zloty and Mexican peso against the U.S. dollar, and changes in related tax effects and hedges.(2) Primarily driven by Citigroup’s pay fixed/receive floating interest rate swap programs that are hedging the floating rates on deposits and long-term debt.(3) Reflects adjustments to the funded status of pension and postretirement plans, which is the difference between the fair value of the plan assets and the projected benefit obligation.(4) See Note 15 to the Consolidated Financial Statements for details of the unrealized gains and losses on Citigroup’s available-for-sale and held-to-maturity securities and the net gains (losses) included in income.230