Commitments and Contingent Liabilities	9 Months Ended
Sep. 30, 2013
Notes to Financial Statements [Abstract]
Commitments and Contingent Liabilities	Contingent Liabilities We are a defendant in a number of litigation matters. In some of these matters, no specified amount is sought. In others, very large or indeterminate amounts, including punitive and treble damages, are asserted. There is a wide variation of pleading practice permitted in the United States courts with respect to requests for monetary damages, including some courts in which no specified amount is required and others which allow the plaintiff to state only that the amount sought is sufficient to invoke the jurisdiction of that court. Further, some jurisdictions permit plaintiffs to allege damages well in excess of reasonably possible verdicts. Based on our extensive experience and that of others in the industry with respect to litigating or resolving claims through settlement over an extended period of time, we believe that the monetary damages asserted in a lawsuit or claim bear little relation to the merits of the case, or the likely disposition value. Therefore, the specific monetary relief sought is not stated. Unless indicated otherwise in the descriptions below, reserves have not been established for litigation and contingencies. An estimated loss is accrued when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Claims Handling Matters We and our insurance subsidiaries, in the ordinary course of our business, are engaged in claim litigation where disputes arise as a result of a denial or termination of benefits. Most typically these lawsuits are filed on behalf of a single claimant or policyholder, and in some of these individual actions punitive damages are sought, such as claims alleging bad faith in the handling of insurance claims. For our general claim litigation, we maintain reserves based on experience to satisfy judgments and settlements in the normal course. We expect that the ultimate liability, if any, with respect to general claim litigation, after consideration of the reserves maintained, will not be material to our consolidated financial condition. Nevertheless, given the inherent unpredictability of litigation, it is possible that an adverse outcome in certain claim litigation involving punitive damages could, from time to time, have a material adverse effect on our consolidated results of operations in a period, depending on the results of operations for the particular period. From time to time class action allegations are pursued where the claimant or policyholder purports to represent a larger number of individuals who are similarly situated. Since each insurance claim is evaluated based on its own merits, there is rarely a single act or series of actions which can properly be addressed by a class action. Nevertheless, we monitor these cases closely and defend ourselves appropriately where these allegations are made. Miscellaneous Matters In September 2008, we received service of a complaint, in an adversary proceeding in connection with the bankruptcy case In re Quebecor World (USA) Inc., et al. entitled Official Committee of Unsecured Creditors of Quebecor World (USA) Inc., et al., v. American United Life Insurance Company, et al., filed in the United States Bankruptcy Court for the Southern District of New York. The complaint alleges that we received preference payments relating to notes held by certain of our insurance subsidiaries and seeks to avoid and recover such payments plus interest and cost of the action. In July 2011, the Bankruptcy Court ruled in our favor, granting a summary judgment motion to dismiss the case against us and the other defendants. This decision was affirmed by the United States District Court for the Southern District of New York in September 2012 and upheld by the United States Court of Appeals for the Second Circuit in June 2013. In October 2013, the plaintiff filed a petition for writ of certiorari with the U.S. Supreme Court. In October 2010, Denise Merrimon, Bobby S. Mowery, and all others similarly situated vs. Unum Life Insurance Company of America, was filed in the United States District Court for the District of Maine. This class action alleges that we breached fiduciary duties owed to certain beneficiaries under certain group life insurance policies when we paid life insurance proceeds by establishing interest-bearing retained asset accounts rather than by mailing checks. Plaintiffs seek to represent a class of beneficiaries under group life insurance contracts that were part of the ERISA employee welfare benefit plans and under which we paid death benefits via retained asset accounts. The plaintiffs' principal theories in the case are: (1) funds held in retained asset accounts were plan assets, and the proceeds earned by us from investing those funds belonged to the beneficiaries, and (2) payment of claims using retained asset accounts did not constitute payment under Maine's late payment statute, requiring us to pay interest on the undrawn retained asset account funds at an annual rate of 18 percent. In February 2012, the District Court issued an opinion rejecting both of plaintiffs' principal theories and ordering judgment for us. At the same time, however, the District Court held that we breached a fiduciary duty to the beneficiaries by failing to pay rates comparable to the best rates available in the market for demand deposits. The District Court also certified a class of people who, during a certain period of time, were beneficiaries under certain group life insurance contracts that were part of ERISA employee welfare benefit plans and were paid death benefits using retained asset accounts. A bench trial was held on the issue of damages in June and July of 2013. In September 2013, the court awarded damages based on a benchmark it created by averaging the interest rates paid on money market mutual funds and money market checking accounts. Based on these averages, the court found that for certain periods of the class we should have paid additional interest and awarded damages of $12.1 million and prejudgment interest of $1.3 million. Subsequent to the court’s judgment, in September 2013 we filed an appeal to the First Circuit Court of Appeals, and plaintiffs filed a cross appeal. Based on contrary law that has developed recently in similar cases, we believe that we have strong legal arguments to raise on appeal. We have not accrued a loss for the judgment because we have determined that we do not have a probable loss under the applicable accounting standard relating to the accrual of loss contingencies. We cannot predict the timing of a decision or assure the ultimate outcome of our appeal. In March 2011, we received a request for information from an independent third party as part of an examination on behalf of 33 states and the District of Columbia to evaluate our compliance with the unclaimed property laws of the participating states. Industry-wide practices are currently under review concerning the identification and handling of unclaimed property by insurers, and numerous other insurers are under similar examination. We are cooperating fully with this examination. In July 2011, the New York State Department of Financial Services issued a special request to approximately 160 insurers, including Unum Group's New York licensed insurance subsidiaries, which requires the insurers to cross-check their life insurance policies, annuity contracts, and retained asset accounts with the latest version of the Social Security Master Death Index to identify any matches. Insurers are also requested to investigate the matches to determine if death benefits are due, to locate the beneficiaries, and to make payments where appropriate. It is possible other state jurisdictions may pursue similar investigations or inquiries or issue directives similar to the New York State Department of Financial Services' letter. It is possible that the audits and related activity may result in additional payments to beneficiaries, the payment of abandoned funds under state law, and/or administrative penalties. We are currently unable to estimate the reasonably possible amount of any additional payments. In December 2012, State of West Virginia ex rel. John D. Perdue v. Provident Life and Accident Insurance Company and State of West Virginia ex rel. John D. Perdue v. Colonial Life & Accident Insurance Company were filed in the Circuit Court of Putnam County, West Virginia. These two separate complaints allege violations of the West Virginia Uniform Unclaimed Property Act by failing to identify and report all unclaimed insurance policy proceeds due to be escheated to West Virginia. The complaints seek to examine company records and assess penalties and costs in an undetermined amount. In April 2013, we filed motions to dismiss both complaints. The motions were heard in September 2013, and we are awaiting a ruling from the court. In May 2013, a purported class action complaint entitled Ruben Don v. Unum Life Insurance Company of America, Wedner Insurance Group, Inc. dba The Morton Wedner Insurance Agency, and Does 1-30, was filed in the Superior Court of California, County of Los Angeles. The plaintiff seeks to represent a class of California insureds who were issued long-term care policies containing an inflation protection feature. The plaintiff alleges we incorrectly administer the inflation protection feature, resulting in an underpayment of benefits. The complaint makes allegations against us for breach of contract, bad faith, fraud, violation of Business and Professions Code 17200, and injunctive relief. In June 2013, we removed the case to the United States District Court for the Central District of California. We are in the process of preparing our response to this complaint. Summary Various lawsuits against us, in addition to those discussed above, have arisen in the normal course of business. Further, state insurance regulatory authorities and other federal and state authorities regularly make inquiries and conduct investigations concerning our compliance with applicable insurance and other laws and regulations. Given the complexity and scope of our litigation and regulatory matters, it is not possible to predict the ultimate outcome of all pending investigations or legal proceedings or provide reasonable estimates of potential losses, except if noted in connection with specific matters. It is possible that our results of operations or cash flows in a particular period could be materially affected by an ultimate unfavorable outcome of pending litigation or regulatory matters depending, in part, on our results of operations or cash flows for the particular period. We believe, however, that the ultimate outcome of all pending litigation and regulatory matters, after consideration of applicable reserves and rights to indemnification, should not have a material adverse effect on our financial position.

Contingent Liabilities

We are a defendant in a number of litigation matters. In some of these matters, no specified amount is sought. In others, very large or indeterminate amounts, including punitive and treble damages, are asserted. There is a wide variation of pleading practice permitted in the United States courts with respect to requests for monetary damages, including some courts in which no specified amount is required and others which allow the plaintiff to state only that the amount sought is sufficient to invoke the jurisdiction of that court. Further, some jurisdictions permit plaintiffs to allege damages well in excess of reasonably possible verdicts. Based on our extensive experience and that of others in the industry with respect to litigating or resolving claims through settlement over an extended period of time, we believe that the monetary damages asserted in a lawsuit or claim bear little relation to the merits of the case, or the likely disposition value. Therefore, the specific monetary relief sought is not stated.

Unless indicated otherwise in the descriptions below, reserves have not been established for litigation and contingencies. An estimated loss is accrued when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated.

Claims Handling Matters

We and our insurance subsidiaries, in the ordinary course of our business, are engaged in claim litigation where disputes arise as a result of a denial or termination of benefits. Most typically these lawsuits are filed on behalf of a single claimant or policyholder, and in some of these individual actions punitive damages are sought, such as claims alleging bad faith in the handling of insurance claims. For our general claim litigation, we maintain reserves based on experience to satisfy judgments and settlements in the normal course. We expect that the ultimate liability, if any, with respect to general claim litigation, after consideration of the reserves maintained, will not be material to our consolidated financial condition. Nevertheless, given the inherent unpredictability of litigation, it is possible that an adverse outcome in certain claim litigation involving punitive damages could, from time to time, have a material adverse effect on our consolidated results of operations in a period, depending on the results of operations for the particular period.

From time to time class action allegations are pursued where the claimant or policyholder purports to represent a larger number of individuals who are similarly situated. Since each insurance claim is evaluated based on its own merits, there is rarely a single act or series of actions which can properly be addressed by a class action. Nevertheless, we monitor these cases closely and defend ourselves appropriately where these allegations are made.

Miscellaneous Matters

In September 2008, we received service of a complaint, in an adversary proceeding in connection with the bankruptcy case In re Quebecor World (USA) Inc., et al. entitled Official Committee of Unsecured Creditors of Quebecor World (USA) Inc., et al., v. American United Life Insurance Company, et al., filed in the United States Bankruptcy Court for the Southern District of New York. The complaint alleges that we received preference payments relating to notes held by certain of our insurance subsidiaries and seeks to avoid and recover such payments plus interest and cost of the action. In July 2011, the Bankruptcy Court ruled in our favor, granting a summary judgment motion to dismiss the case against us and the other defendants. This decision was affirmed by the United States District Court for the Southern District of New York in September 2012 and upheld by the United States Court of Appeals for the Second Circuit in June 2013. In October 2013, the plaintiff filed a petition for writ of certiorari with the U.S. Supreme Court.

In October 2010, Denise Merrimon, Bobby S. Mowery, and all others similarly situated vs. Unum Life Insurance Company of America, was filed in the United States District Court for the District of Maine. This class action alleges that we breached fiduciary duties owed to certain beneficiaries under certain group life insurance policies when we paid life insurance proceeds by establishing interest-bearing retained asset accounts rather than by mailing checks. Plaintiffs seek to represent a class of beneficiaries under group life insurance contracts that were part of the ERISA employee welfare benefit plans and under which we paid death benefits via retained asset accounts. The plaintiffs' principal theories in the case are: (1) funds held in retained asset accounts were plan assets, and the proceeds earned by us from investing those funds belonged to the beneficiaries, and (2) payment of claims using retained asset accounts did not constitute payment under Maine's late payment statute, requiring us to pay interest on the undrawn retained asset account funds at an annual rate of 18 percent. In February 2012, the District Court issued an opinion rejecting both of plaintiffs' principal theories and ordering judgment for us. At the same time, however, the District Court held that we breached a fiduciary duty to the beneficiaries by failing to pay rates comparable to the best rates available in the market for demand deposits. The District Court also certified a class of people who, during a certain period of time, were beneficiaries under certain group life insurance contracts that were part of ERISA employee welfare benefit plans and were paid death benefits using retained asset accounts. A bench trial was held on the issue of damages in June and July of 2013. In September 2013, the court awarded damages based on a benchmark it created by averaging the interest rates paid on money market mutual funds and money market checking accounts. Based on these averages, the court found that for certain periods of the class we should have paid additional interest and awarded damages of $12.1 million and prejudgment interest of $1.3 million. Subsequent to the court’s judgment, in September 2013 we filed an appeal to the First Circuit Court of Appeals, and plaintiffs filed a cross appeal. Based on contrary law that has developed recently in similar cases, we believe that we have strong legal arguments to raise on appeal. We have not accrued a loss for the judgment because we have determined that we do not have a probable loss under the applicable accounting standard relating to the accrual of loss contingencies. We cannot predict the timing of a decision or assure the ultimate outcome of our appeal.

In March 2011, we received a request for information from an independent third party as part of an examination on behalf of 33 states and the District of Columbia to evaluate our compliance with the unclaimed property laws of the participating states. Industry-wide practices are currently under review concerning the identification and handling of unclaimed property by insurers, and numerous other insurers are under similar examination. We are cooperating fully with this examination.

In July 2011, the New York State Department of Financial Services issued a special request to approximately 160 insurers, including Unum Group's New York licensed insurance subsidiaries, which requires the insurers to cross-check their life insurance policies, annuity contracts, and retained asset accounts with the latest version of the Social Security Master Death Index to identify any matches. Insurers are also requested to investigate the matches to determine if death benefits are due, to locate the beneficiaries, and to make payments where appropriate.

It is possible other state jurisdictions may pursue similar investigations or inquiries or issue directives similar to the New York State Department of Financial Services' letter. It is possible that the audits and related activity may result in additional payments to beneficiaries, the payment of abandoned funds under state law, and/or administrative penalties. We are currently unable to estimate the reasonably possible amount of any additional payments.

In December 2012, State of West Virginia ex rel. John D. Perdue v. Provident Life and Accident Insurance Company and State of West Virginia ex rel. John D. Perdue v. Colonial Life & Accident Insurance Company were filed in the Circuit Court of Putnam County, West Virginia. These two separate complaints allege violations of the West Virginia Uniform Unclaimed Property Act by failing to identify and report all unclaimed insurance policy proceeds due to be escheated to West Virginia. The complaints seek to examine company records and assess penalties and costs in an undetermined amount. In April 2013, we filed motions to dismiss both complaints. The motions were heard in September 2013, and we are awaiting a ruling from the court.

In May 2013, a purported class action complaint entitled Ruben Don v. Unum Life Insurance Company of America, Wedner Insurance Group, Inc. dba The Morton Wedner Insurance Agency, and Does 1-30, was filed in the Superior Court of California, County of Los Angeles. The plaintiff seeks to represent a class of California insureds who were issued long-term care policies containing an inflation protection feature. The plaintiff alleges we incorrectly administer the inflation protection feature, resulting in an underpayment of benefits. The complaint makes allegations against us for breach of contract, bad faith, fraud, violation of Business and Professions Code 17200, and injunctive relief. In June 2013, we removed the case to the United States District Court for the Central District of California. We are in the process of preparing our response to this complaint.

Summary

Various lawsuits against us, in addition to those discussed above, have arisen in the normal course of business. Further, state insurance regulatory authorities and other federal and state authorities regularly make inquiries and conduct investigations concerning our compliance with applicable insurance and other laws and regulations.

Given the complexity and scope of our litigation and regulatory matters, it is not possible to predict the ultimate outcome of all pending investigations or legal proceedings or provide reasonable estimates of potential losses, except if noted in connection with specific matters. It is possible that our results of operations or cash flows in a particular period could be materially affected by an ultimate unfavorable outcome of pending litigation or regulatory matters depending, in part, on our results of operations or cash flows for the particular period. We believe, however, that the ultimate outcome of all pending litigation and regulatory matters, after consideration of applicable reserves and rights to indemnification, should not have a material adverse effect on our financial position.