CONTINGENCIES	6 Months Ended
Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES	CONTINGENCIES The following information supplements and amends, as applicable, the disclosures in Note 23 to the Consolidated Financial Statements of Citigroup’s First Quarter of 2018 Form 10-Q and Note 27 to the Consolidated Financial Statements of Citigroup’s 2017 Annual Report on Form 10-K. For purposes of this Note, Citigroup, its affiliates and subsidiaries and current and former officers, directors and employees, are sometimes collectively referred to as Citigroup and Related Parties. In accordance with ASC 450, Citigroup establishes accruals for contingencies, including the litigation and regulatory matters disclosed herein, when Citigroup believes it is probable that a loss has been incurred and the amount of the loss can be reasonably estimated. Once established, accruals are adjusted from time to time, as appropriate, in light of additional information. The amount of loss ultimately incurred in relation to those matters may be substantially higher or lower than the amounts accrued for those matters. If Citigroup has not accrued for a matter because the matter does not meet the criteria for accrual (as set forth above), or Citigroup believes an exposure to loss exists in excess of the amount accrued for a particular matter, in each case assuming a material loss is reasonably possible, Citigroup discloses the matter. In addition, for such matters, Citigroup discloses an estimate of the aggregate reasonably possible loss or range of loss in excess of the amounts accrued for those matters as to which an estimate can be made. At June 30, 2018, Citigroup’s estimate of the reasonably possible unaccrued loss for these matters was materially unchanged from the estimate of approximately $1.0 billion in the aggregate as of March 31, 2018. As available information changes, the matters for which Citigroup is able to estimate will change, and the estimates themselves will change. In addition, while many estimates presented in financial statements and other financial disclosures involve significant judgment and may be subject to significant uncertainty, estimates of the range of reasonably possible loss arising from litigation and regulatory proceedings are subject to particular uncertainties. For example, at the time of making an estimate, Citigroup may have only preliminary, incomplete or inaccurate information about the facts underlying the claim; its assumptions about the future rulings of the court or other tribunal on significant issues, or the behavior and incentives of adverse parties or regulators, may prove to be wrong; and the outcomes it is attempting to predict are often not amenable to the use of statistical or other quantitative analytical tools. In addition, from time to time an outcome may occur that Citigroup had not accounted for in its estimates because it had deemed such an outcome to be remote. For all these reasons, the amount of loss in excess of accruals ultimately incurred for the matters as to which an estimate has been made could be substantially higher or lower than the range of loss included in the estimate. Subject to the foregoing, it is the opinion of Citigroup's management, based on current knowledge and after taking into account its current legal accruals, that the eventual outcome of all matters described in this Note would not be likely to have a material adverse effect on the consolidated financial condition of Citigroup. Nonetheless, given the substantial or indeterminate amounts sought in certain of these matters and the inherent unpredictability of such matters, an adverse outcome in certain of these matters could, from time to time, have a material adverse effect on Citigroup’s consolidated results of operations or cash flows in particular quarterly or annual periods. For further information on ASC 450 and Citigroup's accounting and disclosure framework for contingencies, including for litigation and regulatory matters disclosed herein, see Note 27 to the Consolidated Financial Statements of Citigroup’s 2017 Annual Report on Form 10-K. ANZ Underwriting Matter On June 1, 2018, charges were filed by the Australian Commonwealth Director of Public Prosecutions (CDPP) against Citigroup Global Markets Australia Pty Limited (CGMA) for alleged criminal cartel offenses following a referral by the Australian Competition and Consumer Commission. CDPP alleges that the cartel conduct took place following an institutional share placement by Australia and New Zealand Banking Group Limited (ANZ) in August 2015, where CGMA acted as joint underwriter and lead manager with other banks. CDPP has also charged other banks and individuals, including current and former Citi employees. Charges relating to CGMA are captioned R v. CITIGROUP GLOBAL MARKETS AUSTRALIA PTY LIMITED (2018/00175168). The matter is before the Downing Centre Local Court in Sydney, Australia. Separately, the Australian Securities and Investments Commission is conducting an investigation, and CGMA is cooperating with the investigation. CARD Act Matter On June 29, 2018, Citi entered into a consent order with the Bureau of Consumer Financial Protection related to certain self-reported methodological issues in connection with determining annual percentage rates (APRs) for certain cardholders under the rate re-evaluation provisions of the Credit Card Accountability Responsibility and Disclosure Act (CARD Act) and Regulation Z. Credit Crisis-Related Litigation and Other Matters Tribune Company Bankruptcy On May 15, 2018, the United States Court of Appeals for the Second Circuit withdrew its 2016 transfer of jurisdiction to the district court in IN RE: TRIBUNE COMPANY FRAUDULENT CONVEYANCE LITIGATION, in order to reconsider its decision in light of a recent United States Supreme Court decision. Additional information concerning these actions is publicly available in court filings under the docket numbers 08-13141 (Bankr. D. Del.) (Carey, J.), 11 MD 02296 (S.D.N.Y.) (Sullivan, J.), 12 MC 2296 (S.D.N.Y.) (Sullivan, J.), 13-3992, 13-3875, 13-4178, 13-4196 (2d Cir.) and 16-317 (U.S.). Depositary Receipts Conversion Litigation On June 6, 2018, the parties informed the court that they had reached a settlement in principle and requested a 45-day stay to prepare final settlement documentation and submit a motion for preliminary approval of the settlement. On June 11, 2018, the court granted the request for a stay. Additional information concerning this action is publicly available in court filings under the docket number 15 Civ. 9185 (S.D.N.Y.) (McMahon, C.). Foreign Exchange Matters Antitrust and Other Litigation: On May 23, 2018, in IN RE FOREIGN EXCHANGE BENCHMARK RATES ANTITRUST LITIGATION, the court held a fairness hearing to consider plaintiffs’ motion for final approval of the proposed class settlements with Citi and certain other banks and plaintiffs’ motion for attorneys’ fees. Additional information concerning this action is publicly available in court filings under the docket number 13 Civ. 7789 (S.D.N.Y.) (Schofield, J.). On June 20, 2018, in NYPL v. JPMORGAN CHASE & CO., the court denied plaintiffs’ request to expand their class to include credit card, wire and ATM transactions with a foreign currency exchange component. On July 20, 2018, plaintiffs moved for reconsideration of this decision. Additional information concerning this action is publicly available in court filings under the docket numbers 15 Civ. 2290 (N.D. Cal.) (Chhabria, J.) and 15 Civ. 9300 (S.D.N.Y.) (Schofield, J.). On July 10, 2018, the United States Court of Appeals for the Second Circuit affirmed the dismissal of ALLEN v. BANK OF AMERICA CORPORATION, ET AL., in which plaintiffs had alleged violations of the Employee Retirement Income Security Act. Additional information concerning this action is publicly available in court filings under the docket numbers 15 Civ. 4285 (S.D.N.Y.) (Schofield, J.) and 16-3327 (lead case) and 16-3571 (consolidated case) (2d Cir.). Interbank Offered Rates-Related Litigation and Other Matters Regulatory Actions: On June 15, 2018, Citibank entered into a $100 million civil settlement regarding its USD LIBOR submissions with a consortium of 42 state attorneys general. Interest Rate Swaps Matters Antitrust and Other Litigation: Numerous defendants, including Citigroup, Citibank, Citigroup Global Markets Inc. (CGMI) and Citigroup Global Markets Limited, were named as defendants in a complaint filed in the United States District Court for the Southern District of New York under the caption TRUEEX LLC v. BANK OF AMERICA CORPORATION, ET AL. Plaintiff asserts federal and state antitrust claims, as well as state claims for unjust enrichment and tortious interference, and seeks treble damages, fees, costs and injunctive relief. On June 21, 2018, this action was consolidated with the multidistrict litigation captioned IN RE: INTEREST RATE SWAPS ANTITRUST LITIGATION. Additional information concerning this action is publicly available in court filings under the docket numbers 18-CV-5361 (S.D.N.Y.) (Engelmayer, J.) and 16-MDL-2704 (S.D.N.Y.) (Engelmayer, J.). Oceanografía Fraud and Related Matters Other Litigation: On June 22, 2018, in the action filed in the United States District Court for the Southern District of Florida, plaintiffs filed a notice of appeal of the decision dismissing the complaint. Additional information concerning this action is publicly available in court filings under the docket number 16-20725 (S.D. Fla.) (Gayles, J.). Shareholder Derivative Litigation On May 8, 2018, plaintiffs filed a notice of voluntary dismissal of their appeal from the order dismissing the complaint in OKLAHOMA FIREFIGHTERS PENSION & RETIREMENT SYSTEM, ET AL. v. CORBAT, ET AL. Additional information concerning this action is publicly available in court filings under the docket numbers C.A. No. 12151-VCG (Del. Ch.) (Glasscock, Ch.) and No. 32, 2018 (Del.). Sovereign Securities Matters Regulatory Actions: Government and regulatory agencies in the United States and in other jurisdictions are conducting investigations or making inquiries regarding Citigroup’s sales and trading activities in connection with sovereign and other government-related securities. Citigroup is fully cooperating with these investigations and inquiries. Antitrust and Other Litigation: Five additional complaints have been filed in the United States District Court for the Southern District of New York against numerous defendants, including Citigroup, CGMI, Citigroup Financial Products Inc., Citigroup Global Markets Holdings Inc. and Citibanamex, which assert antitrust and unjust enrichment claims and seek treble damages, restitution and injunctive relief. The additional complaints are based on allegations similar to those in the March 30, 2018 putative class action. All six actions were consolidated on June 18, 2018, and additional information relating to this consolidated action is publicly available in court filings under the docket number 18 Civ. 2830 (S.D.N.Y.) (Oetken, J.). Settlement Payments Payments required in settlement agreements described above have been made or are covered by existing litigation accruals.

CONTINGENCIES

The following information supplements and amends, as applicable, the disclosures in Note 23 to the Consolidated Financial Statements of Citigroup’s First Quarter of 2018 Form 10-Q and Note 27 to the Consolidated Financial Statements of Citigroup’s 2017 Annual Report on Form 10-K. For purposes of this Note, Citigroup, its affiliates and subsidiaries and current and former officers, directors and employees, are sometimes collectively referred to as Citigroup and Related Parties.

In accordance with ASC 450, Citigroup establishes accruals for contingencies, including the litigation and regulatory matters disclosed herein, when Citigroup believes it is probable that a loss has been incurred and the amount of the loss can be reasonably estimated. Once established, accruals are adjusted from time to time, as appropriate, in light of additional information. The amount of loss ultimately incurred in relation to those matters may be substantially higher or lower than the amounts accrued for those matters.

If Citigroup has not accrued for a matter because the matter does not meet the criteria for accrual (as set forth above), or Citigroup believes an exposure to loss exists in excess of the amount accrued for a particular matter, in each case assuming a material loss is reasonably possible, Citigroup discloses the matter. In addition, for such matters, Citigroup discloses an estimate of the aggregate reasonably possible loss or range of loss in excess of the amounts accrued for those matters as to which an estimate can be made. At June 30, 2018, Citigroup’s estimate of the reasonably possible unaccrued loss for these matters was materially unchanged from the estimate of approximately $1.0 billion in the aggregate as of March 31, 2018.

As available information changes, the matters for which Citigroup is able to estimate will change, and the estimates themselves will change. In addition, while many estimates presented in financial statements and other financial disclosures involve significant judgment and may be subject to significant uncertainty, estimates of the range of reasonably possible loss arising from litigation and regulatory proceedings are subject to particular uncertainties. For example, at the time of making an estimate, Citigroup may have only preliminary, incomplete or inaccurate information about the facts underlying the claim; its assumptions about the future rulings of the court or other tribunal on significant issues, or the behavior and incentives of adverse parties or regulators, may prove to be wrong; and the outcomes it is attempting to predict are often not amenable to the use of statistical or other quantitative analytical tools. In addition, from time to time an outcome may occur that Citigroup had not accounted for in its estimates because it had deemed such an outcome to be remote. For all these reasons, the amount of loss in excess of accruals ultimately incurred for the matters as to which an estimate has been made could be substantially higher or lower than the range of loss included in the estimate.

Subject to the foregoing, it is the opinion of Citigroup's management, based on current knowledge and after taking into account its current legal accruals, that the eventual outcome of all matters described in this Note would not be likely to have a material adverse effect on the consolidated financial condition of Citigroup. Nonetheless, given the substantial or indeterminate amounts sought in certain of these matters and the inherent unpredictability of such matters, an adverse outcome in certain of these matters could, from time to time, have a material adverse effect on Citigroup’s consolidated results of operations or cash flows in particular quarterly or annual periods.

For further information on ASC 450 and Citigroup's accounting and disclosure framework for contingencies, including for litigation and regulatory matters disclosed herein, see Note 27 to the Consolidated Financial Statements of Citigroup’s 2017 Annual Report on Form 10-K.

ANZ Underwriting Matter

On June 1, 2018, charges were filed by the Australian Commonwealth Director of Public Prosecutions (CDPP) against Citigroup Global Markets Australia Pty Limited (CGMA) for alleged criminal cartel offenses following a referral by the Australian Competition and Consumer Commission. CDPP alleges that the cartel conduct took place following an institutional share placement by Australia and New Zealand Banking Group Limited (ANZ) in August 2015, where CGMA acted as joint underwriter and lead manager with other banks. CDPP has also charged other banks and individuals, including current and former Citi employees. Charges relating to CGMA are captioned R v. CITIGROUP GLOBAL MARKETS AUSTRALIA PTY LIMITED (2018/00175168). The matter is before the Downing Centre Local Court in Sydney, Australia. Separately, the Australian Securities and Investments Commission is conducting an investigation, and CGMA is cooperating with the investigation.

CARD Act Matter

On June 29, 2018, Citi entered into a consent order with the Bureau of Consumer Financial Protection related to certain self-reported methodological issues in connection with determining annual percentage rates (APRs) for certain cardholders under the rate re-evaluation provisions of the Credit Card Accountability Responsibility and Disclosure Act (CARD Act) and Regulation Z.

Credit Crisis-Related Litigation and Other Matters

Tribune Company Bankruptcy

On May 15, 2018, the United States Court of Appeals for the Second Circuit withdrew its 2016 transfer of jurisdiction to the district court in IN RE: TRIBUNE COMPANY FRAUDULENT CONVEYANCE LITIGATION, in order to reconsider its decision in light of a recent United States Supreme Court decision. Additional information concerning these actions is publicly available in court filings under the docket numbers 08-13141 (Bankr. D. Del.) (Carey, J.), 11 MD 02296 (S.D.N.Y.) (Sullivan, J.), 12 MC 2296 (S.D.N.Y.) (Sullivan, J.), 13-3992, 13-3875, 13-4178, 13-4196 (2d Cir.) and 16-317 (U.S.).

Depositary Receipts Conversion Litigation

On June 6, 2018, the parties informed the court that they had reached a settlement in principle and requested a 45-day stay to prepare final settlement documentation and submit a motion for preliminary approval of the settlement. On June 11, 2018, the court granted the request for a stay. Additional information concerning this action is publicly available in court filings under the docket number 15 Civ. 9185 (S.D.N.Y.) (McMahon, C.).

Foreign Exchange Matters

Antitrust and Other Litigation: On May 23, 2018, in IN RE FOREIGN EXCHANGE BENCHMARK RATES ANTITRUST LITIGATION, the court held a fairness hearing to consider plaintiffs’ motion for final approval of the proposed class settlements with Citi and certain other banks and plaintiffs’ motion for attorneys’ fees. Additional information concerning this action is publicly available in court filings under the docket number 13 Civ. 7789 (S.D.N.Y.) (Schofield, J.).

On June 20, 2018, in NYPL v. JPMORGAN CHASE & CO., the court denied plaintiffs’ request to expand their class to include credit card, wire and ATM transactions with a foreign currency exchange component. On July 20, 2018, plaintiffs moved for reconsideration of this decision. Additional information concerning this action is publicly available in court filings under the docket numbers 15 Civ. 2290 (N.D. Cal.) (Chhabria, J.) and 15 Civ. 9300 (S.D.N.Y.) (Schofield, J.).

On July 10, 2018, the United States Court of Appeals for the Second Circuit affirmed the dismissal of ALLEN v. BANK OF AMERICA CORPORATION, ET AL., in which plaintiffs had alleged violations of the Employee Retirement Income Security Act. Additional information concerning this action is publicly available in court filings under the docket numbers 15 Civ. 4285 (S.D.N.Y.) (Schofield, J.) and 16-3327 (lead case) and 16-3571 (consolidated case) (2d Cir.).

Interbank Offered Rates-Related Litigation and Other

Matters

Regulatory Actions: On June 15, 2018, Citibank entered into a $100 million civil settlement regarding its USD LIBOR submissions with a consortium of 42 state attorneys general.

Interest Rate Swaps Matters

Antitrust and Other Litigation: Numerous defendants, including Citigroup, Citibank, Citigroup Global Markets Inc. (CGMI) and Citigroup Global Markets Limited, were named as defendants in a complaint filed in the United States District Court for the Southern District of New York under the caption TRUEEX LLC v. BANK OF AMERICA CORPORATION, ET AL. Plaintiff asserts federal and state antitrust claims, as well as state claims for unjust enrichment and tortious interference, and seeks treble damages, fees, costs and injunctive relief. On June 21, 2018, this action was consolidated with the multidistrict litigation captioned IN RE: INTEREST RATE SWAPS ANTITRUST LITIGATION. Additional information concerning this action is publicly available in court filings under the docket numbers 18-CV-5361 (S.D.N.Y.) (Engelmayer, J.) and 16-MDL-2704 (S.D.N.Y.) (Engelmayer, J.).

Oceanografía Fraud and Related Matters

Other Litigation: On June 22, 2018, in the action filed in the United States District Court for the Southern District of Florida, plaintiffs filed a notice of appeal of the decision dismissing the complaint. Additional information concerning this action is publicly available in court filings under the docket number 16-20725 (S.D. Fla.) (Gayles, J.).

Shareholder Derivative Litigation

On May 8, 2018, plaintiffs filed a notice of voluntary dismissal of their appeal from the order dismissing the complaint in OKLAHOMA FIREFIGHTERS PENSION & RETIREMENT SYSTEM, ET AL. v. CORBAT, ET AL. Additional information concerning this action is publicly available in court filings under the docket numbers C.A. No. 12151-VCG (Del. Ch.) (Glasscock, Ch.) and No. 32, 2018 (Del.).

Sovereign Securities Matters

Regulatory Actions: Government and regulatory agencies in the United States and in other jurisdictions are conducting investigations or making inquiries regarding Citigroup’s sales and trading activities in connection with sovereign and other government-related securities. Citigroup is fully cooperating with these investigations and inquiries.

Antitrust and Other Litigation: Five additional complaints have been filed in the United States District Court for the Southern District of New York against numerous defendants, including Citigroup, CGMI, Citigroup Financial Products Inc., Citigroup Global Markets Holdings Inc. and Citibanamex, which assert antitrust and unjust enrichment claims and seek treble damages, restitution and injunctive relief. The additional complaints are based on allegations similar to those in the March 30, 2018 putative class action. All six actions were consolidated on June 18, 2018, and additional information relating to this consolidated action is publicly available in court filings under the docket number 18 Civ. 2830 (S.D.N.Y.) (Oetken, J.).

Settlement Payments

Payments required in settlement agreements described above have been made or are covered by existing litigation accruals.