Guarantees and Contingencies	3 Months Ended
Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Guarantees and contingencies [Text Block]	Contingencies The Company is required by law to be a member of the guaranty fund association in every state where it is licensed to do business. In the event of insolvency of one or more unaffiliated insurance companies, the Company could be adversely affected by the requirement to pay assessments to the guaranty fund associations. The Company projects its cost of future guaranty fund assessments based on estimates of insurance company insolvencies provided by the National Organization of Life and Health Insurance Guaranty Associations (“NOLHGA”) and the amount of its premiums written relative to the industry-wide premium in each state. The Company accrues the estimated cost of future guaranty fund assessments when it is considered probable that an assessment will be imposed, the event obligating the Company to pay the assessment has occurred and the amount of the assessment can be reasonably estimated. The Company has a liability for estimated guaranty fund assessments and a related premium tax asset. As of both March 31, 2017 and December 31, 2016, the estimated liability was $16 million and the related premium tax asset was $14 million. The expected period over which guaranty fund assessments will be made and the related tax credits recovered is not known. The Company and its subsidiaries are involved in the normal course of business in legal, regulatory and arbitration proceedings, including class actions, concerning matters arising in connection with the conduct of its activities as a diversified financial services firm. These include proceedings specific to the Company as well as proceedings generally applicable to business practices in the industries in which it operates. The Company can also be subject to litigation arising out of its general business activities, such as its investments, contracts, leases and employment relationships. Uncertain economic conditions, heightened and sustained volatility in the financial markets and significant financial reform legislation may increase the likelihood that clients and other persons or regulators may present or threaten legal claims or that regulators increase the scope or frequency of examinations of the Company or the financial services industry generally. As with other financial services firms, the level of regulatory activity and inquiry concerning the Company’s businesses remains elevated. From time to time, the Company receives requests for information from, and/or has been subject to examination or claims by, the SEC, FINRA, the OCC, the UK Financial Conduct Authority, state insurance and securities regulators, state attorneys general and various other domestic or foreign governmental and quasi-governmental authorities on behalf of themselves or clients concerning the Company’s business activities and practices, and the practices of the Company’s financial advisors. The Company has numerous pending matters which include information requests, exams or inquiries that the Company has received during recent periods regarding certain matters, including: sales and distribution of mutual funds, exchange traded funds, annuities, equity and fixed income securities, real estate investment trusts, insurance products, and financial advice offerings; supervision of the Company’s financial advisors; administration of insurance and annuity claims; security of client information; trading activity and the Company’s monitoring and supervision of such activity; performance advertising and product disclosures, including third party performance claims; and transaction monitoring systems and controls. The Company is also participating in regulatory audits, market conduct examinations and other state inquiries relating to an industry-wide investigation of unclaimed property and escheatment practices and procedures. The Company has cooperated and will continue to cooperate with the applicable regulators. These legal and regulatory proceedings and disputes are subject to uncertainties and, as such, it is inherently difficult to determine whether any loss is probable or even reasonably possible, or to reasonably estimate the amount of any loss. The Company cannot predict with certainty if, how or when any such proceedings will be initiated or resolved or what the eventual settlement, fine, penalty or other relief, if any, may be, particularly for proceedings that are in their early stages of development or where plaintiffs seek indeterminate damages. Numerous issues may need to be resolved, including through potentially lengthy discovery and determination of important factual matters, and by addressing unsettled legal questions relevant to the proceedings in question, before a loss or range of loss can be reasonably estimated for any proceeding. An adverse outcome in one or more proceeding could eventually result in adverse judgments, settlements, fines, penalties or other sanctions, in addition to further claims, examinations or adverse publicity that could have a material adverse effect on the Company’s consolidated financial condition, results of operations or liquidity. In accordance with applicable accounting standards, the Company establishes an accrued liability for contingent litigation and regulatory matters when those matters present loss contingencies that are both probable and can be reasonably estimated. In such cases, there still may be an exposure to loss in excess of any amounts reasonably estimated and accrued. When a loss contingency is not both probable and estimable, the Company does not establish an accrued liability, but continues to monitor, in conjunction with any outside counsel handling a matter, further developments that would make such loss contingency both probable and reasonably estimable. Once the Company establishes an accrued liability with respect to a loss contingency, the Company continues to monitor the matter for further developments that could affect the amount of the accrued liability that has been previously established, and any appropriate adjustments are made each quarter. Certain legal and regulatory proceedings are described below. In November 2014, a lawsuit was filed against the Company’s London-based asset management affiliate in England’s High Court of Justice Commercial Court, entitled Otkritie Capital International Ltd and JSC Otkritie Holding v. Threadneedle Asset Management Ltd. and Threadneedle Management Services Ltd. (“Threadneedle Defendants”). Claimants allege that the Threadneedle Defendants should be held liable for the wrongful acts of one of its former employees, who in February 2014 was held jointly and severally liable with several other parties for conspiracy and dishonest assistance in connection with a fraud perpetrated against Claimants in 2011. Claimants allege they were harmed by that fraud in the amount of $106 million. The Threadneedle Defendants applied to the Court for an Order dismissing the proceedings as an abuse of process of the Court. This application was declined in August 2015. The Threadneedle Defendants applied to the Court of Appeal for leave to appeal, which application was granted in November 2015. In April 2017, the Court of Appeal denied the Threadneedle Defendants’ appeal. The case will now proceed in England’s High Court of Justice Commercial Court. The Company cannot reasonably estimate the range of loss, if any, that may result from this matter due to the early procedural status of the case, the number of parties involved, and the failure to allege any specific, evidence based damages.

Contingencies

The Company is required by law to be a member of the guaranty fund association in every state where it is licensed to do business. In the event of insolvency of one or more unaffiliated insurance companies, the Company could be adversely affected by the requirement to pay assessments to the guaranty fund associations.

The Company projects its cost of future guaranty fund assessments based on estimates of insurance company insolvencies provided by the National Organization of Life and Health Insurance Guaranty Associations (“NOLHGA”) and the amount of its premiums written relative to the industry-wide premium in each state. The Company accrues the estimated cost of future guaranty fund assessments when it is considered probable that an assessment will be imposed, the event obligating the Company to pay the assessment has occurred and the amount of the assessment can be reasonably estimated.

The Company has a liability for estimated guaranty fund assessments and a related premium tax asset. As of both March 31, 2017 and December 31, 2016, the estimated liability was $16 million and the related premium tax asset was $14 million. The expected period over which guaranty fund assessments will be made and the related tax credits recovered is not known.

The Company and its subsidiaries are involved in the normal course of business in legal, regulatory and arbitration proceedings, including class actions, concerning matters arising in connection with the conduct of its activities as a diversified financial services firm. These include proceedings specific to the Company as well as proceedings generally applicable to business practices in the industries in which it operates. The Company can also be subject to litigation arising out of its general business activities, such as its investments, contracts, leases and employment relationships. Uncertain economic conditions, heightened and sustained volatility in the financial markets and significant financial reform legislation may increase the likelihood that clients and other persons or regulators may present or threaten legal claims or that regulators increase the scope or frequency of examinations of the Company or the financial services industry generally.

As with other financial services firms, the level of regulatory activity and inquiry concerning the Company’s businesses remains elevated. From time to time, the Company receives requests for information from, and/or has been subject to examination or claims by, the SEC, FINRA, the OCC, the UK Financial Conduct Authority, state insurance and securities regulators, state attorneys general and various other domestic or foreign governmental and quasi-governmental authorities on behalf of themselves or clients concerning the Company’s business activities and practices, and the practices of the Company’s financial advisors. The Company has numerous pending matters which include information requests, exams or inquiries that the Company has received during recent periods regarding certain matters, including: sales and distribution of mutual funds, exchange traded funds, annuities, equity and fixed income securities, real estate investment trusts, insurance products, and financial advice offerings; supervision of the Company’s financial advisors; administration of insurance and annuity claims; security of client information; trading activity and the Company’s monitoring and supervision of such activity; performance advertising and product disclosures, including third party performance claims; and transaction monitoring systems and controls. The Company is also participating in regulatory audits, market conduct examinations and other state inquiries relating to an industry-wide investigation of unclaimed property and escheatment practices and procedures. The Company has cooperated and will continue to cooperate with the applicable regulators.

These legal and regulatory proceedings and disputes are subject to uncertainties and, as such, it is inherently difficult to determine whether any loss is probable or even reasonably possible, or to reasonably estimate the amount of any loss. The Company cannot predict with certainty if, how or when any such proceedings will be initiated or resolved or what the eventual settlement, fine, penalty or other relief, if any, may be, particularly for proceedings that are in their early stages of development or where plaintiffs seek indeterminate damages. Numerous issues may need to be resolved, including through potentially lengthy discovery and determination of important factual matters, and by addressing unsettled legal questions relevant to the proceedings in question, before a loss or range of loss can be reasonably estimated for any proceeding. An adverse outcome in one or more proceeding could eventually result in adverse judgments, settlements, fines, penalties or other sanctions, in addition to further claims, examinations or adverse publicity that could have a material adverse effect on the Company’s consolidated financial condition, results of operations or liquidity.

In accordance with applicable accounting standards, the Company establishes an accrued liability for contingent litigation and regulatory matters when those matters present loss contingencies that are both probable and can be reasonably estimated. In such cases, there still may be an exposure to loss in excess of any amounts reasonably estimated and accrued. When a loss contingency is not both probable and estimable, the Company does not establish an accrued liability, but continues to monitor, in conjunction with any outside counsel handling a matter, further developments that would make such loss contingency both probable and reasonably estimable. Once the Company establishes an accrued liability with respect to a loss contingency, the Company continues to monitor the matter for further developments that could affect the amount of the accrued liability that has been previously established, and any appropriate adjustments are made each quarter.

Certain legal and regulatory proceedings are described below.

In November 2014, a lawsuit was filed against the Company’s London-based asset management affiliate in England’s High Court of Justice Commercial Court, entitled Otkritie Capital International Ltd and JSC Otkritie Holding v. Threadneedle Asset Management Ltd. and Threadneedle Management Services Ltd. (“Threadneedle Defendants”). Claimants allege that the Threadneedle Defendants should be held liable for the wrongful acts of one of its former employees, who in February 2014 was held jointly and severally liable with several other parties for conspiracy and dishonest assistance in connection with a fraud perpetrated against Claimants in 2011. Claimants allege they were harmed by that fraud in the amount of $106 million. The Threadneedle Defendants applied to the Court for an Order dismissing the proceedings as an abuse of process of the Court. This application was declined in August 2015. The Threadneedle Defendants applied to the Court of Appeal for leave to appeal, which application was granted in November 2015. In April 2017, the Court of Appeal denied the Threadneedle Defendants’ appeal. The case will now proceed in England’s High Court of Justice Commercial Court. The Company cannot reasonably estimate the range of loss, if any, that may result from this matter due to the early procedural status of the case, the number of parties involved, and the failure to allege any specific, evidence based damages.