Summary of Significant Accounting Policies and Nature of Operations	6 Months Ended
Jun. 30, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies and Nature of Operations	Summary of Significant Accounting Policies and Nature of Operations MUFG Americas Holdings Corporation (MUAH) is a financial holding company, bank holding company and intermediate holding company whose principal subsidiaries are MUFG Union Bank, N.A. (MUB or the Bank) and MUFG Securities Americas Inc. (MUSA). MUAH provides a wide range of financial services to consumers, small businesses, middle-market companies and major corporations nationally and internationally. The Company also provides various business, banking, financial, administrative and support services, and facilities for MUFG Bank, Ltd. (formerly The Bank of Tokyo-Mitsubishi UFJ, Ltd.) in connection with the operation and administration of MUFG Bank, Ltd.'s business in the U.S. (including MUFG Bank, Ltd.'s U.S. branches). All of the Company's issued and outstanding shares of common stock are owned by MUFG Bank, Ltd. and MUFG. The unaudited Consolidated Financial Statements of MUFG Americas Holdings Corporation, its subsidiaries, and its consolidated variable interest entities (the Company) have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial reporting and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the Rules and Regulations of the SEC. However, they do not include all of the disclosures necessary for annual financial statements. In the opinion of management, all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation have been included. The results of operations for the second quarter of 2020 are not necessarily indicative of the operating results anticipated for the full year. These unaudited Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2019 (2019 Form 10-K). The preparation of financial statements in conformity with GAAP also requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expense during the reporting period. Although such estimates contemplate current conditions and management’s expectations of how they may change in the future, it is reasonably possible that actual results could differ significantly from those estimates. This could materially affect the Company’s results of operations and financial condition in the near term. Critical estimates made by management in the preparation of the Company’s financial statements include, but are not limited to, the allowance for credit losses (Note 3 "Loans and Allowance for Loan Losses"), goodwill impairment, fair value of financial instruments (Note 8 "Fair Value Measurement and Fair Value of Financial Instruments"), pension accounting (Note 11 "Employee Pension and Other Postretirement Benefits"), income taxes, and transfer pricing. Allowance for Credit Losses Allowance for loan losses Allowance for loan losses is a valuation account that is deducted from the assets’ amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged off against the allowance when management believes the uncollectibility of a loan balance is confirmed. Expected recoveries do not exceed the aggregate of amounts previously charged-off. Management develops and documents its systematic methodology for determining the allowance by first dividing its portfolio into two segments - the commercial segment and consumer segment. The Company further divides its portfolio segments into classes based on initial measurement attributes, risk characteristics or its method of monitoring and assessing credit risk. The classes for the Company include commercial and industrial, commercial mortgage, construction, residential mortgage and home equity, and other consumer loans. While the Company's methodology attributes portions of the allowance to specific portfolio segments and classes, the allowance estimate is provided to cover all credit losses expected in the loan portfolio. The Company's methodology for estimating the allowance balance uses relevant available information, relating to past events, current conditions, and reasonable and supportable forecasts. Historical credit loss experience provides the basis for the estimation of expected credit losses. Adjustments to historical loss information are made to account for differences between current and expected future conditions and those reflected in historical loss information. The allowance is measured on a collective basis when similar risk characteristics exist. Loans that do not share risk characteristics are evaluated on an individual basis. The collectively-assessed allowance methodology incorporated an economic forecast over a 36-month period when ASU 2016-13, Measurement of Credit Losses on Financial Instruments, was adopted as of January 1, 2020. Beyond the 36-month economic forecast, the allowance methodology reverted to average historical loss information on a straight-line basis over a 24-month period. However, the economic forecast was shortened to a 24-month period during the first quarter of 2020 due to heightened volatility and uncertainty in the economy due to the emergence of COVID-19. No change was made to the 24-month straight-line reversion to historical loss information. These timeframes are regularly reviewed and approved by management and may be adjusted if economic conditions warrant. An expected loss approach is used to estimate the collectively-assessed allowance for both the commercial and consumer portfolio segments. Expected loss is calculated as the product of PD, LGD, and EAD modeled parameters that are projected on a monthly basis over the assets’ remaining contractual lives. The sum of each month’s expected loss calculation results in the collectively-assessed allowance estimate. Expected loss models use historical loss information and a variety of economic assumptions to estimate PD, LGD, and EAD. These models are tailored to different loan segments, classes and products by changing the economic variables or their weighting in the calculation used to estimate expected losses. The allowance is an estimate of expected credit losses over the remaining contractual term of each asset. Expected prepayments are incorporated into the estimation of the EAD for each asset over the asset’s remaining term, which shortens the expected remaining term. Contractual term is not adjusted for expected extensions, renewals, and modifications unless we have a reasonable expectation that a TDR will be executed with a borrower. Credit cards do not have defined contractual terms. In order to estimate the expected credit losses on actively used revolving credit card balances, we make assumptions about expected payments and expected spending on the unconditionally cancelable unfunded amount at the measurement date. Expected spending after the measurement date reduces the expected payments that are allocated to the outstanding balance at the measurement date. Expected credit losses are calculated only on the outstanding balances component at the measurement date, which is amortized by applying the proportion of the expected payment allocated to the outstanding balance. Expected payments applied to the expected spending after the measurement date are effectively excluded from the analysis because unconditionally cancelable unfunded commitments are not reservable. Loans that do not share risk characteristics are evaluated individually to determine the allowance balance. Loans assessed individually include larger nonaccruing loans within the commercial portfolio, TDRs, reasonably expected TDRs and collateral-dependent loans. Collateral-dependent loans are generally individually-assessed for allowance purposes. Collateral-dependent assets' expected credit losses are assessed when the fair value of the collateral is less than the amortized cost basis of the asset. Collateral-dependent assets are evaluated in this manner when foreclosure is probable, or when repayment is expected to be provided substantially through the operation or sale of the collateral when the borrower is experiencing financial difficulty. Estimated costs to sell are included in the estimate when repayment is expected by the sale of the collateral. Collateral-dependent assets are generally secured by real estate collateral. When the discounted cash flow method is used to determine the allowance for individually-assessed loans, management does not adjust the interest rate used to discount expected cash flows to incorporate expected prepayments. Management implements qualitative adjustments to the collectively-assessed allowance to account for the risks not incorporated in the model between current conditions and those reflected in the historical loss information used to estimate the models. These qualitative factors include changes in credit policies, problem loan trends, identification of new risks not incorporated into the modeling framework, credit concentrations, changes in lending management and other external factors. Qualitative adjustments are also used to adjust the collectively-assessed allowance to account for risks attributed to imprecision in the economic forecast and when risks emerge that impact specific portfolio components (i.e., natural disasters). TDRs are loans where we have granted a concession to a borrower as a result of the borrower experiencing financial difficulty and, consequently, we receive less than the current market-based compensation for loans with similar risk characteristics. Such loans' allowance is measured either individually or in pools with similar risk characteristics. The allowance for a TDR loan is measured using the same method as all other loans when evaluated in pools. The allowance for individually assessed TDR loans can be measured using a discounted cash flow methodology, or by evaluating the fair value of the collateral, if collateral dependent. When the value of a concession cannot be measured using a method other than the discounted cash flow method, the value of a concession is measured by discounting the expected future cash flows at the original interest rate of the loan. When we have a reasonable expectation that a TDR loan may be executed with a borrower at the evaluation date, we may modify the allowance calculation to align with the expected modification terms, which may include modifying the expected contractual term. We generally do not record an allowance for accrued interest receivable on loans held for investment, which is included in other assets on the consolidated balance sheet. Uncollectible accrued interest is generally reversed through interest income. Allowance for Credit Losses on Debt Securities All securities held to maturity are explicitly or implicitly guaranteed by U.S. government entities or agencies and have a long history of no credit losses. No credit losses are expected on these assets and thus no allowance is estimated on securities held to maturity. Securities available for sale are composed of assets that are explicitly or implicitly guaranteed by U.S. government entities or agencies and non-agency-backed assets that are highly rated and have not incurred credit losses historically. Unrealized losses on available for sale securities arise from changes in market conditions, not credit losses. Direct purchase bonds are not externally rated but are assessed quarterly to determine whether credit losses exist. Unrealized losses on the direct purchase bonds have arisen from higher current expected returns on capital as compared with required rates of return on capital on the bonds at origination. No credit losses are expected on these assets and thus no allowance is estimated on securities available for sale. Allowance for Credit Losses on Securities Borrowed or Purchased under Resale Agreements Securities borrowed or purchased under resale agreements are also subject to allowance estimation, however management has no history of credit losses on these assets and has portfolio monitoring practices that ensure collateral is maintained at appropriate levels. As borrowers have a history of replenishing collateral securing the financial assets, when needed, and are expected to continue to maintain such behavior in the future, no allowance is estimated on these assets, consistent with the practical expedient methodology described in ASC 326-20-35-6. Management reviews these portfolios on a quarterly basis to confirm the conclusion of no allowance for credit losses remains appropriate. Allowance for Credit Losses on Unfunded Credit Commitments The Company maintains an allowance for losses on unfunded credit commitments for the contractual term over which we are exposed to credit risk that is not unconditionally cancelable by the Company. The Company's allowance methodology for unfunded credit commitments is the same as that used for the allowance for the other collectively-evaluated assets and includes an estimate of commitments that are expected to fund over the remaining contractual term. The allowance for losses on unfunded credit commitments is classified as other liabilities on the balance sheet, with the changes recognized in the provision for credit losses. Troubled Debt Restructurings A TDR is a restructuring of a loan in which the creditor, for economic or legal reasons related to the borrower's financial difficulties, grants a concession to the borrower that it would not otherwise consider. A loan subject to such a restructuring is accounted for as a TDR. A TDR typically involves a modification of terms such as a reduction of the interest rate below the current market rate for a loan with similar risk characteristics or extending the maturity date of the loan without corresponding compensation or additional support. The Company measures impairment of a TDR using the methodology described for individually evaluated loans (see "Allowance for Loan Losses" above). For the consumer portfolio segment, TDRs are initially placed on nonaccrual and typically, a minimum of six consecutive months of sustained performance is required before returning to accrual status. For the commercial portfolio segment, the Company generally determines accrual status for TDRs by performing an individual assessment of each loan, which may include, among other factors, demonstrated performance by the borrower under the previous terms. On March 22, 2020, the federal bank regulatory agencies issued joint guidance advising that the agencies have confirmed with the staff of the FASB that short-term modifications due to COVID-19 made on a good faith basis to borrowers who were current prior to relief, are not TDRs. On March 27, 2020 the CARES Act, which provides relief from TDR classification for certain COVID-19 related loan modifications, was signed into law. At June 30, 2020, $2.7 billion of modified commercial loans and $3.8 billion of modified consumer loans were not classified as TDRs since the modifications, which were largely payment deferrals, met the criteria under either the CARES Act or the criteria specified by the regulatory agencies. For loan modifications that include a payment deferral and are not TDRs, the borrower’s past due and nonaccrual status will not be impacted during the deferral period. Interest income will continue to be recognized over the contractual life of the loan. Recently Adopted Accounting Pronouncements Measurement of Credit Losses on Financial Instruments In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments, which provides new guidance on the accounting for credit losses for instruments that are within its scope. This new guidance is commonly referred to as the CECL model. For loans and debt securities accounted for at amortized cost, certain off-balance sheet credit exposures, net investments in leases, and trade receivables, the ASU requires an entity to recognize its estimate of credit losses expected over the life of the financial instrument or exposure by incorporating forward-looking information, such as reasonable and supportable forecasts, in the entity's assessment of the collectability of financial assets. Lifetime expected credit losses on purchased financial assets with credit deterioration will be recognized as an allowance with an offset to the cost basis of the asset. For available for sale debt securities, the new standard will require recognition of expected credit losses by recognizing an allowance for credit losses when the fair value of the security is below amortized cost and the recognition of this allowance is limited to the difference between the security’s amortized cost basis and fair value. The Company adopted the ASU on January 1, 2020, and recorded an increase to the allowance for credit losses of $199 million, primarily due to an increase in the allowance for consumer loans, offset by a $52 million deferred tax asset, and a $147 million cumulative-effect adjustment reduction to retained earnings. Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, the FASB issued ASU 2018-13, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, which modifies disclosure requirements on fair value measurements to improve their effectiveness. The guidance permits entities to consider materiality when evaluating fair value measurement disclosures and, among other modifications, requires certain new disclosures related to Level 3 fair value measurements. The Company adopted the ASU on January 1, 2020. The guidance only affects disclosures in the Notes to the Consolidated Financial Statements and will not affect the Company’s financial position or results of operations.

Summary of Significant Accounting Policies and Nature of Operations

MUFG Americas Holdings Corporation (MUAH) is a financial holding company, bank holding company and intermediate holding company whose principal subsidiaries are MUFG Union Bank, N.A. (MUB or the Bank) and MUFG Securities Americas Inc. (MUSA). MUAH provides a wide range of financial services to consumers, small businesses, middle-market companies and major corporations nationally and internationally. The Company also provides various business, banking, financial, administrative and support services, and facilities for MUFG Bank, Ltd. (formerly The Bank of Tokyo-Mitsubishi UFJ, Ltd.) in connection with the operation and administration of MUFG Bank, Ltd.'s business in the U.S. (including MUFG Bank, Ltd.'s U.S. branches). All of the Company's issued and outstanding shares of common stock are owned by MUFG Bank, Ltd. and MUFG. The unaudited Consolidated Financial Statements of MUFG Americas Holdings Corporation, its subsidiaries, and its consolidated variable interest entities (the Company) have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial reporting and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the Rules and Regulations of the SEC. However, they do not include all of the disclosures necessary for annual financial statements. In the opinion of management, all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation have been included. The results of operations for the second quarter of 2020 are not necessarily indicative of the operating results anticipated for the full year. These unaudited Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2019 (2019 Form 10-K).

The preparation of financial statements in conformity with GAAP also requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expense during the reporting period. Although such estimates contemplate current conditions and management’s expectations of how they may change in the future, it is reasonably possible that actual results could differ significantly from those estimates. This could materially affect the Company’s results of operations and financial condition in the near term. Critical estimates made by management in the preparation of the Company’s financial statements include, but are not limited to, the allowance for credit losses (Note 3 "Loans and Allowance for Loan Losses"), goodwill impairment, fair value of financial instruments (Note 8 "Fair Value Measurement and Fair Value of Financial Instruments"), pension accounting (Note 11 "Employee Pension and Other Postretirement Benefits"), income taxes, and transfer pricing.

Allowance for Credit Losses

Allowance for loan losses

Allowance for loan losses is a valuation account that is deducted from the assets’ amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged off against the allowance when management believes the uncollectibility of a loan balance is confirmed. Expected recoveries do not exceed the aggregate of amounts previously charged-off.

Management develops and documents its systematic methodology for determining the allowance by

first dividing its portfolio into two segments - the commercial segment and consumer segment. The Company

further divides its portfolio segments into classes based on initial measurement attributes, risk characteristics or its method of monitoring and assessing credit risk. The classes for the Company include commercial and industrial, commercial mortgage, construction, residential mortgage and home equity, and other consumer loans. While the Company's methodology attributes portions of the allowance to specific portfolio segments and classes, the allowance estimate is provided to cover all credit losses expected in the loan portfolio.

The Company's methodology for estimating the allowance balance uses relevant available information, relating to past events, current conditions, and reasonable and supportable forecasts. Historical credit loss experience provides the basis for the estimation of expected credit losses. Adjustments to historical loss information are made to account for differences between current and expected future conditions and those reflected in historical loss information. The allowance is measured on a collective basis when similar risk characteristics exist. Loans that do not share risk characteristics are evaluated on an individual basis.

The collectively-assessed allowance methodology incorporated an economic forecast over a 36-month period when ASU 2016-13, Measurement of Credit Losses on Financial Instruments, was adopted as of January 1, 2020. Beyond the 36-month economic forecast, the allowance methodology reverted to average historical loss information on a straight-line basis over a 24-month period. However, the economic forecast was shortened to a 24-month period during the first quarter of 2020 due to heightened volatility and uncertainty in the economy due to the emergence of COVID-19. No change was made to the 24-month straight-line reversion to historical loss information. These timeframes are regularly reviewed and approved by management and may be adjusted if economic conditions warrant.

An expected loss approach is used to estimate the collectively-assessed allowance for both the commercial and consumer portfolio segments. Expected loss is calculated as the product of PD, LGD, and EAD modeled parameters that are projected on a monthly basis over the assets’ remaining contractual lives. The sum of each month’s expected loss calculation results in the collectively-assessed allowance estimate. Expected loss models use historical loss information and a variety of economic assumptions to estimate PD, LGD, and EAD. These models are tailored to different loan segments, classes and products by changing the economic variables or their weighting in the calculation used to estimate expected losses.

The allowance is an estimate of expected credit losses over the remaining contractual term of each

asset. Expected prepayments are incorporated into the estimation of the EAD for each asset over the asset’s remaining term, which shortens the expected remaining term. Contractual term is not adjusted for expected extensions, renewals, and modifications unless we have a reasonable expectation that a TDR will be executed with a borrower. Credit cards do not have defined contractual terms. In order to estimate the expected credit losses on actively used revolving credit card balances, we make assumptions about expected payments and expected spending on the unconditionally cancelable unfunded amount at the measurement date. Expected spending after the measurement date reduces the expected payments that are allocated to the outstanding balance at the measurement date. Expected credit losses are calculated only on the outstanding balances component at the measurement date, which is amortized by applying the proportion of the expected payment allocated to the outstanding balance. Expected payments applied to the expected spending after the measurement date are effectively excluded from the analysis because unconditionally cancelable unfunded commitments are not reservable.

Loans that do not share risk characteristics are evaluated individually to determine the allowance balance. Loans assessed individually include larger nonaccruing loans within the commercial portfolio, TDRs, reasonably expected TDRs and collateral-dependent loans. Collateral-dependent loans are generally individually-assessed for allowance purposes. Collateral-dependent assets' expected credit losses are assessed when the fair value of the collateral is less than the amortized cost basis of the asset. Collateral-dependent assets are evaluated in this manner when foreclosure is probable, or when repayment is expected to be provided substantially through the operation or sale of the collateral when the borrower is experiencing financial difficulty. Estimated costs to sell are included in the estimate when repayment is expected by the sale of the collateral. Collateral-dependent assets are generally secured by real estate collateral. When the discounted cash flow method is used to determine the allowance for individually-assessed loans, management does not adjust the interest rate used to discount expected cash flows to incorporate expected prepayments.

Management implements qualitative adjustments to the collectively-assessed allowance to account for the risks not incorporated in the model between current conditions and those reflected in the historical loss information used to estimate the models. These qualitative factors include changes in credit policies, problem loan trends, identification of new risks not incorporated into the modeling framework, credit concentrations, changes in lending management and other external factors. Qualitative adjustments are also used to adjust the collectively-assessed allowance to account for risks attributed to imprecision in the economic forecast and when risks emerge that impact specific portfolio components (i.e., natural disasters).

TDRs are loans where we have granted a concession to a borrower as a result of the borrower experiencing financial difficulty and, consequently, we receive less than the current market-based compensation for loans with similar risk characteristics. Such loans' allowance is measured either individually or in pools with similar risk characteristics. The allowance for a TDR loan is measured using the same method as all other loans when evaluated in pools. The allowance for individually assessed TDR loans can be measured using a discounted cash flow methodology, or by evaluating the fair value of the collateral, if collateral dependent. When the value of a concession cannot be measured using a method other than the discounted cash flow method, the value of a concession is measured by discounting the expected future cash flows at the original interest rate of the loan. When we have a reasonable expectation that a TDR loan may be executed with a borrower at the evaluation date, we may modify the allowance calculation to align with the expected modification terms, which may include modifying the expected contractual term.

We generally do not record an allowance for accrued interest receivable on loans held for investment, which is included in other assets on the consolidated balance sheet. Uncollectible accrued interest is generally reversed through interest income.

Allowance for Credit Losses on Debt Securities

All securities held to maturity are explicitly or implicitly guaranteed by U.S. government entities or agencies and have a long history of no credit losses. No credit losses are expected on these assets and thus no allowance is estimated on securities held to maturity.

Securities available for sale are composed of assets that are explicitly or implicitly guaranteed by U.S. government entities or agencies and non-agency-backed assets that are highly rated and have not incurred credit losses historically. Unrealized losses on available for sale securities arise from changes in market conditions, not credit losses. Direct purchase bonds are not externally rated but are assessed quarterly to determine whether credit losses exist. Unrealized losses on the direct purchase bonds have arisen from higher current expected returns on capital as compared with required rates of return on capital on the bonds at origination. No credit losses are expected on these assets and thus no allowance is estimated on securities available for sale.

Allowance for Credit Losses on Securities Borrowed or Purchased under Resale Agreements

Securities borrowed or purchased under resale agreements are also subject to allowance estimation, however management has no history of credit losses on these assets and has portfolio monitoring practices that ensure collateral is maintained at appropriate levels. As borrowers have a history of replenishing collateral securing the financial assets, when needed, and are expected to continue to maintain such behavior in the future, no allowance is estimated on these assets, consistent with the practical expedient methodology described in ASC 326-20-35-6. Management reviews these portfolios on a quarterly basis to confirm the conclusion of no allowance for credit losses remains appropriate.

Allowance for Credit Losses on Unfunded Credit Commitments

The Company maintains an allowance for losses on unfunded credit commitments for the contractual term over which we are exposed to credit risk that is not unconditionally cancelable by the Company. The Company's allowance methodology for unfunded credit commitments is the same as that used for the allowance for the other collectively-evaluated assets and includes an estimate of commitments that are expected to fund over the remaining contractual term. The allowance for losses on unfunded credit commitments is classified as other liabilities on the balance sheet, with the changes recognized in the provision for credit losses.

Troubled Debt Restructurings

A TDR is a restructuring of a loan in which the creditor, for economic or legal reasons related to the borrower's financial difficulties, grants a concession to the borrower that it would not otherwise consider. A loan subject to such a restructuring is accounted for as a TDR. A TDR typically involves a modification of terms such as a reduction of the interest rate below the current market rate for a loan with similar risk characteristics or extending the maturity date of the loan without corresponding compensation or additional support. The Company measures impairment of a TDR using the methodology described for individually evaluated loans (see "Allowance for Loan Losses" above). For the consumer portfolio segment, TDRs are initially placed on nonaccrual and typically, a minimum of six consecutive months of sustained performance is required before returning to accrual status. For the commercial portfolio segment, the Company generally determines accrual status for TDRs by performing an individual assessment of each loan, which may include, among other factors, demonstrated performance by the borrower under the previous terms.

On March 22, 2020, the federal bank regulatory agencies issued joint guidance advising that the agencies have confirmed with the staff of the FASB that short-term modifications due to COVID-19 made on a good faith basis to borrowers who were current prior to relief, are not TDRs. On March 27, 2020 the CARES Act, which provides relief from TDR classification for certain COVID-19 related loan modifications, was signed into law. At June 30, 2020, $2.7 billion of modified commercial loans and $3.8 billion of modified consumer loans were not classified as TDRs since the modifications, which were largely payment deferrals, met the criteria under either the CARES Act or the criteria specified by the regulatory agencies. For loan modifications that include a payment deferral and are not TDRs, the borrower’s past due and nonaccrual status will not be impacted during the deferral period. Interest income will continue to be recognized over the contractual life of the loan.

Recently Adopted Accounting Pronouncements

Measurement of Credit Losses on Financial Instruments

In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments, which provides new guidance on the accounting for credit losses for instruments that are within its scope. This new guidance is commonly referred to as the CECL model. For loans and debt securities accounted for at amortized cost, certain off-balance sheet credit exposures, net investments in leases, and trade receivables, the ASU requires an entity to recognize its estimate of credit losses expected over the life of the financial instrument or exposure by incorporating forward-looking information, such as reasonable and supportable forecasts, in the entity's assessment of the collectability of financial assets. Lifetime expected credit losses on purchased financial assets with credit deterioration will be recognized as an allowance with an offset to the cost basis of the asset. For available for sale debt securities, the new standard will require recognition of expected credit losses by recognizing an allowance for credit losses when the fair value of the security is below amortized cost and the recognition of this allowance is limited to the difference between the security’s amortized cost basis and fair value. The Company adopted the ASU on January 1, 2020, and recorded an increase to the allowance for credit losses of $199 million, primarily due to an increase in the allowance for consumer loans, offset by a $52 million deferred tax asset, and a $147 million cumulative-effect adjustment reduction to retained earnings.

Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement

In August 2018, the FASB issued ASU 2018-13, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, which modifies disclosure requirements on fair value measurements to improve their effectiveness. The guidance permits entities to consider materiality when evaluating fair value measurement disclosures and, among other modifications, requires certain new disclosures related to Level 3 fair value measurements. The Company adopted the ASU on January 1, 2020. The guidance only affects disclosures in the Notes to the Consolidated Financial Statements and will not affect the Company’s financial position or results of operations.