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Financial risk management
12 Months Ended
Mar. 31, 2024
Text Block1 [Abstract]  
Financial risk management
6.
Financial risk management
 
(1)
Capital risk
Sony uses Return on Equity (“ROE”) as an indicator for capital risk management.
 
    
March 31
 
    
 2023 

 Restated 
   
 2024 
 
ROE*
     16.4     13.7
 
*
ROE is calculated using equity attributable to Sony Group Corporation’s stockholders.
Sony manages capital separately for the Financial Services segment and the Sony Group without the Financial Services segment because certain subsidiaries in the Financial Services segment are subject to the below restrictions. Sony also refers to the ratio of stockholders’ equity to total assets of the Sony Group without the Financial Services segment to ensure financial soundness.
In the Financial Services segment, Sony is required to maintain the soundness indicators at a certain level or higher based on the Insurance Business Act and the Banking Act
of
Japan. Material requirements which Sony is subject to are as follows:
Insurance business: Maintain solvency margin ratio
The life insurance subsidiary and the
non-life
insurance subsidiary have maintained a solvency margin ratio
required by
the Japanese domestic criteria.
 
Banking business: Maintain capital adequacy ratio
The banking subsidiary has maintained a capital adequacy ratio
required by
the Japanese domestic criteria.
Accordingly, lending and borrowing between subsidiaries in the Financial Services segment and the other companies within Sony Group is strictly limited. The carrying amounts of total assets of Sony Financial Group Inc. (“SFGI”) as of March 31, 2023 and 2024 are 19,912,827 million yen and 20,877,128 million yen, respectively. The carrying amounts of total liabilities of SFGI as of March 31, 2023 and 2024 are 18,728,102 million yen and 19,763,959 million yen, respectively. The amounts as of March 31, 2023 have been restated in accordance with IFRS 17.
 
(2)
Interest rate risk
For interest rate risk inherent in the insurance business, which is included in the Financial Services segment, refer to Note 13. For interest rate risk inherent in the banking business, which is included in the Financial Services segment, refer to (7) Market risks for the banking business.
Risk management policy and exposure
Interest rate risk is the risk the fair value of a financial instrument or future cash flows of the financial instrument will fluctuate because of changes in market interest rates.
Sony without the Financial Services segment is exposed to interest rate risk that is mainly related to its liabilities such as short-term borrowings and long-term debt as well as bonds. The amount of interest will be affected by changes in market interest rates; therefore, Sony is exposed to the interest rate risk that the future cash outflows for interest payments will fluctuate.
Sony raises funds by issuing fixed-rate bonds in order to avoid an increase in future interest payments that is mainly resulting from an increase in interest rates.
Also, Sony utilizes interest rate swap agreements to reduce funding costs, to diversify sources of funding, and to hedge the downside risk on borrowings and debt securities resulting from unfavorable fluctuations of interest rates and currency exchange rates, and from changes in the fair value of financial instruments. Therefore, the interest rate risk associated with cash flows of Sony without the Financial Services segment is not significant.
 
(3)
Price risk
For price risk inherent in the insurance business, which is included in the Financial Services segment, refer to Note 13. For price risk inherent in the banking business, which is included in the Financial Services segment, refer to (7) Market risks for the banking business.
Risk management policy and exposure
Sony is exposed to securities price risk inherent in holding of equities in other entities in Japan and overseas countries. Sony periodically assesses fair values of equity instruments and the financial conditions of the issuers of such equity instruments, and reviews its portfolio on a regular basis.
Price sensitivity analysis
The table below shows the effects on income before income taxes and other comprehensive income (before considering the tax effects) as of March 31, 2023 and 2024 if market prices of marketable equity instruments (e.g., stocks) had decreased by 10%.
 
    
Yen in millions
 
    
March 31
 
    
 2023 
    
 2024 
 
Income before income taxes
     (11,734      (24,621
Other comprehensive income (before considering the tax effects)
     (9,800      (6,116
 
(4)
Liquidity risk
For liquidity risk inherent in the insurance business, which is included in the Financial Services segment, refer to Note 13. This section does not include information regarding the insurance business other than maturity analysis for financial liabilities.
Risk management policy
The description below covers basic financial policy and figures for Sony’s consolidated operations except for the Financial Services segment and certain subsidiaries, which secure liquidity on their own. Furthermore, the banking business in the Financial Services segment is described separately at the end of this section.
Liquidity Management and Market Access
An important financial objective of Sony is to maintain the strength of its financial condition, while securing adequate liquidity for business activities. Sony defines its liquidity sources as the amount of cash and cash equivalents (“cash balance”) (excluding restrictions on capital transfers mainly due to national regulations) and the unused amount of committed lines of credit. Funding requirements that arise from maintaining liquidity are principally covered by cash flow from operating and investing activities (including asset sales) and by the available cash balance; however, Sony also raises funds as needed from financial and capital markets through means such as corporate bonds, commercial paper (“CP”) and bank loans. Sony Group Corporation, Sony Global Treasury Services Plc (“SGTS”), a finance subsidiary in the U.K. and Sony Capital Corporation (“SCC”), a finance subsidiary in the U.S., maintain CP programs with access to the Japanese, U.S. and European CP markets. The borrowing limits under these CP programs, translated into yen, were 1,257.1 billion yen in total for Sony Group Corporation, SGTS and SCC as of March 31, 2024. There were no amounts outstanding under the CP programs as of March 31, 2024. If disruption and volatility occur in financial and capital markets and Sony becomes unable to raise sufficient funds from these sources, Sony may also draw down funds from contractually committed lines of credit from various financial institutions. Sony has a total, translated into yen, of 766.4 billion yen in unused committed lines of credit, as of March 31, 2024. Details of those committed lines of credit are: a 350.0 billion yen committed line of credit contracted with a syndicate of Japanese banks, a 1.7 billion U.S. dollar multi-currency committed line of credit also contracted with a syndicate of Japanese banks and a 1.05 billion U.S. dollar multi-currency committed line of credit contracted with a syndicate of foreign banks. Sony currently believes that it can sustain sufficient liquidity through access to committed lines of credit with financial institutions, together with its available cash balance, even in the event that financial and capital markets become illiquid. Sony considers one of management’s top priorities to be the maintenance of stable and appropriate credit ratings in order to ensure financial flexibility for liquidity and capital management and continued adequate access to sufficient funding resources in the financial and capital markets. However, in the event of a downgrade in Sony’s credit ratings, there are no financial covenants in any of Sony’s material financial agreements with financial institutions that would cause an acceleration of the obligation. Even though the cost of borrowing for some committed lines of credit could change according to Sony’s credit ratings, there are no financial covenants that would cause any impairment on the ability to draw down on unused facilities.
Cash Management
Sony manages its global cash management activities primarily through Sony Group Corporation in Japan, SCC in the U.S. and SGTS in other regions. The excess or shortage of cash at most of Sony’s subsidiaries is invested or funded by Sony Group Corporation, SGTS and SCC on a net basis, although Sony recognizes that fund transfers are limited in certain countries and geographic areas due to restrictions on capital transactions. In order to pursue more efficient cash management, cash surpluses among Sony’s subsidiaries are deposited with Sony Group Corporation, SGTS and SCC, and cash shortfalls among subsidiaries are covered by loans through Sony Group Corporation, SGTS and SCC, so that Sony can make use of excess cash balances and reduce third-party borrowings. Where local restrictions prevent an efficient intercompany transfer of funds, Sony’s intent is that cash balances remain outside of Sony Group Corporation, SGTS and SCC and that Sony meets its liquidity needs through ongoing cash flows, external borrowings, or both. Sony does not expect restrictions of capital transactions on amounts held outside of Japan to have a material effect on Sony’s overall liquidity, financial condition or results of operations.
 
Banking business in the Financial Services segment
In the banking business in the Financial Services segment, by formulating and conforming with liquidity risk management policies, Sony manages its liquidity risks. Sony defines liquidity risk as cash flow risk and market liquidity risk. Cash flow risk is the risk associated with losses due to Sony’s inability to make cash payments because of a failure to maintain sufficient cash reserves at settlement, as well as risks associated with losses if Sony is forced to raise funds under unfavorable conditions in order to fulfill cash payment obligations. The levels of cash flow risks are classified into phases based on the degree of pressure, and methods of risk management and reporting are set out for each phase, while guidelines are formulated and reviewed as necessary. Market liquidity risk is the risk associated with losses due to Sony’s inability to conduct market transactions, in particular due to an inability to unwind its market position at a given time, or due to Sony being forced to complete transactions under unfavorable market conditions, due to market turmoil or other factors. To manage market liquidity risk, Sony works to understand market liquidity conditions that pertain to the types of products it handles. Sony formulates and revises guidelines on a
product-by-product
basis, as necessary. The aforementioned liquidity risk management is carried out by the risk management division. The division periodically reports risk management conditions to the banking subsidiary’s Board of Directors and Executive Committee. In addition, the banking subsidiary’s internal audit division conducts audits of the risk management conditions.
Maturity analysis
The following table summarizes Sony’s financial liabilities as of March 31, 2023 and 2024.
 
   
Yen in millions
 
   
March 31, 2023
 
   
Carrying

amount
   
Total
   
Within

1 year
   
1 year to

2 years
   
2 years to

3 years
   
3 years to

4 years
   
4 years to

5 years
   
5+ years
 
Deposits from customers in the banking business
*1
    3,306,981       3,316,556       3,171,377       30,215       14,933       1,060       2,410       96,561  
Bonds
    349,332       354,169       26,039       40,986       110,862       35,591       80,416       60,275  
Borrowings
    2,988,994       3,025,480       1,998,315        70,690       147,447       270,268        62,571       476,189  
Loan commitments
          35,831       35,831                                
Derivative liabilities
*2
    34,123       33,766       28,886       623       1,041       912       918       1,386  
Guarantee deposits received
    40,568       40,568       31,085       272       19       58       13       9,121  
Redeemable noncontrolling interests
    47,326       48,616             24,844       10,397       4,572       198       8,605  
 
    
Yen in millions
 
    
March 31, 2023
 
    
Carrying

amount
  
Total
    
Within

1 year
    
1 year to

2 years
    
2 years to

3 years
    
3 years to

4 years
    
4 years to

5 years
 
Lease liabilities
   532,246      593,967        90,244        80,476        68,143        55,189        47,665  
  
 
5 years to
6 years
 
 
  
 
6 years to
7 years
 
 
  
 
7 years to
8 years
 
 
  
 
8 years to
9 years
 
 
  
 
9 years to
10 years
 
 
  
 
10+ years
 
     56,603        37,539        34,588        25,798        18,384        79,338  
 
*1
Demand deposits are included in the “Within 1 year” category.
 
*2
Breakdown of net settlements and gross settlements in the derivative liabilities are presented below.
 
    
Yen in millions
 
    
March 31, 2023
 
    
Total
    
Within

1 year
    
1 year to

2 years
    
2 years to

3 years
    
3 years to

4 years
    
4 years to

5 years
    
5+ years
 
Derivative contracts
                                                                                                       
—Net settled
                    
Paid
     32,881        27,820        769        1,076        912        918        1,386  
Derivative contracts
                    
—Gross settled
                    
Received
     29,092        25,894        156        3,042                       
Paid
     29,977        26,960        10        3,007                       
 
   
Yen in millions
 
   
March 31, 2024
 
   
Carrying

amount
   
Total
   
Within

1 year
   
1 year to

2 years
   
2 years to

3 years
   
3 years to

4 years
   
4 years to

5 years
   
5+ years
 
Deposits from customers in the banking business
*1
    3,845,607       3,870,349       3,687,051       22,043       11,422       2,728       3,069       144,036  
Bonds
    544,078       554,986       42,236       112,112       126,786       101,302       80,974       91,576  
Borrowings
    2,972,629       3,013,803       1,909,097       84,525       259,511       231,829       156,945       371,896  
Loan commitments
          50,965       50,965                                
Derivative liabilities
*2
    29,287       29,557       23,465       1,179       1,178       1,145       953       1,637  
Guarantee deposits received
    44,864       44,864       31,479       135       9       24       10       13,207  
Redeemable noncontrolling interests
    54,028       54,389             14,794       25,740       99       5,292       8,464  
 
    
Yen in millions
 
    
March 31, 2024
 
    
Carrying

amount
  
Total
    
Within

1 year
    
1 year to

2 years
    
2 years to

3 years
    
3 years to

4 years
    
4 years to

5 years
 
Lease liabilities
   571,726      671,899        106,505        96,090        85,917        68,624        57,850  
  
5 years to

6 years
    
6 years to

7 years
    
7 years to

8 years
    
8 years to

9 years
    
9 years to

10 years
    
10+ years
 
     51,240        47,630        37,279        29,390        21,954        69,420  
 
*1
Demand deposits are included in the “Within 1 year” category.
 
*2
Breakdown of net settlements and gross settlements in the derivative liabilities are presented below.
 
    
Yen in millions
 
    
March 31, 2024
 
    
Total
    
Within

1 year
    
1 year to

2 years
    
2 years to

3 years
    
3 years to

4 years
    
4 years to

5 years
    
5+ years
 
Derivative contracts
                                                                                                       
—Net settled
                    
Paid
     28,220        22,128        1,179        1,178        1,145        953        1,637  
Derivative contracts
                    
—Gross settled
                    
Received
     49,187        49,187                                     
Paid
     50,524        50,524                                     
 
(5)
Foreign exchange risk
For foreign exchange risk inherent in the insurance business, which is included in the Financial Services segment, refer to Note 13. For foreign exchange risk inherent in the banking business, which is included in the Financial Services segment, refer to (7) Market risks for the banking business.
 
Risk management policy and exposure
Costs and prices of products and services in transactions denominated in foreign currencies are affected by currency exchange rate fluctuation, which may have adverse impacts on Sony’s business, operating results, and financial condition. Sony seeks to reduce its exposure to foreign exchange risk mainly by using derivatives such as currency forward contracts or investing in securities denominated in the same currency.
The net amount of Sony’s exposure to foreign exchange risk mainly includes the following. Foreign exchange risk exposures that are mitigated by the use of derivatives are excluded.
 
    
Yen in millions
 
    
March 31
 
    
 2023 
    
 2024 
 
U.S. dollar
     45,316        81,000  
Euro
     1,459        282  
 
*
Net exposures resulting in a liability are presented as negative and net exposures resulting in an asset are presented as positive.
Sensitivity analysis
The table below shows the effects on the income before income taxes regarding the financial instruments denominated in foreign currencies held by Sony as of March 31, 2023 and 2024 if the Japanese yen had strengthened by 10% against the U.S. dollar or euro. If the Japanese yen had weakened by 10% against the U.S. dollar or euro, there would be an opposite impact on income before income taxes in the same amount. This analysis was performed based on the assumption that all other variables stay the same.
 
    
Yen in millions
 
    
March 31
 
    
 2023 
    
 2024 
 
U.S. dollar
     (4,532      (8,100
Euro
     (146      (28
 
(6)
Credit risk
Risk management policy and exposure
Sony is exposed to credit risk in relation to its customers with outstanding trade receivables and the financial institutions who are the counterparties of derivative instruments that Sony holds to hedge the foreign exchange risk related to such trade receivables.
In order to manage risks inherent in trade receivables, Sony assesses management conditions and creditworthiness of prospective customers and sets credit limits before commencement of business in accordance with Sony’s internal rules regarding credit management. After commencement of business, in accordance with Sony’s internal rules regarding receivable management, Sony seeks to promptly identify and mitigate the risk of uncollectible receivables due to deterioration in the financial conditions of customers by managing payment due dates and outstanding balances by customer, consistently reviewing the status of transactions, payment history, and trends in the outstanding balance of customers, and actively monitoring their management and business conditions. Sony makes judgments about the creditworthiness of customers based on past collection experience, the current conditions, forecasts of future economic conditions and ongoing credit risk evaluations when calculating the loss allowances for the expected credit losses from trade receivables.
In addition, the credit risk inherent in derivative transactions is considered low since Sony enters into derivative transactions only with financial institutions with high creditworthiness or central clearing house counterparties, and such derivative transactions are collateralized.
The Financial Services segment formulates Fundamental Principles for Risk Management and manages risks depending on its subsidiaries’ size, characteristics and business. Risk Management Guidelines in the
Financial Services segment establish a detailed framework for risk management, and each of the subsidiaries in the Financial Services segment has developed a framework for risk management on its own depending on the characteristics of financial assets, including issuer credit risk on debt securities, counterparty risks and risks related to loans to individuals, including credit screenings, credit limits, the management of credit information, credit ratings, the setting of guarantees or collateral and the handling of problem assets on a
case-by-case
basis. Relevant departments of subsidiaries in the Financial Services segment periodically report risk management conditions to their Boards of Directors.
Risk exposure analysis
 
(a)
Changes in the loss allowances
Trade and other receivables, and contract assets including
non-current
other receivables in the Pictures segment
 
    
Yen in millions
 
    
  Lifetime expected credit losses  
 
    
Fiscal year ended March 31
 
    
2023
    
2024
 
Balance at beginning of the fiscal year
     31,341        27,534  
  
 
 
    
 
 
 
Changes due to financial assets recognized at beginning of the fiscal year:
     
— Financial assets that have been derecognized
     (4,568      (2,018
New financial assets originated or purchased
     6,401        9,464  
Write-offs
     (6,647      (5,990
Changes in models/risk parameters
     (1,409      643  
Foreign exchange and other movements
     2,416        3,433  
  
 
 
    
 
 
 
Balance at end of the fiscal year
     27,534        33,066  
  
 
 
    
 
 
 
 
Debt Securities
 
     
    
Yen in millions
 
    
12-month
expected credit losses *
 
    
Fiscal year ended March 31
 
    
2023
    
2024
 
Balance at beginning of the fiscal year
     53        61  
  
 
 
    
 
 
 
Changes due to financial assets recognized at beginning of the fiscal year:
     
— Financial assets that have been derecognized
     (4      (10
New financial assets originated or purchased
     13        8  
Changes in models/risk parameters
     (1      (1
Foreign exchange and other movements
             
  
 
 
    
 
 
 
Balance at end of the fiscal year
     61        58  
  
 
 
    
 
 
 
 
*
For all debt securities, Sony considers that the credit risk has not increased significantly since initial recognition, and therefore the loss allowance is measured at an amount equal to
12-months
of expected credit losses.
Substantially all of the loss allowances for debt securities are for debt securities measured at fair value through other comprehensive income as of March 31, 2023 and 2024.
 
Loans
 
    
Yen in millions
 
    
12-month

expected
credit
losses
    
Lifetime
expected
credit
losses
    
Total
 
Balance as of April 1, 2022
     164        927        1,091  
Changes due to financial assets recognized as of April 1, 2022:
        
— Transfer to lifetime expected credit losses
     (1      1         
— Transfer to
12-month
expected credit losses
     80        (80       
— Financial assets that have been derecognized
     (6      (285      (291
New financial assets originated or purchased
     51        20        71  
Changes in models/risk parameters
     25        241        266  
Foreign exchange and other movements
                    
  
 
 
    
 
 
    
 
 
 
Balance as of March 31, 2023
     313        824        1,137  
  
 
 
    
 
 
    
 
 
 
Changes due to financial assets recognized as of March 31, 2023:
        
— Transfer to lifetime expected credit losses
     (1      1         
— Transfer to
12-month
expected credit losses
     106        (106       
— Financial assets that have been derecognized
     (24      (227      (251
New financial assets originated or purchased
     45        823        869  
Changes in models/risk parameters
     (162      187        24  
Foreign exchange and other movements
                    
  
 
 
    
 
 
    
 
 
 
Balance as of March 31, 2024
     277        1,502        1,779  
  
 
 
    
 
 
    
 
 
 
Loans that are credit-impaired as of March 31, 2023 and 2024 were not significant.
 
(b)
Description of collateral held as security and other credit enhancements
Sony assesses creditworthiness of each customer on an individual project basis. When it is determined to extend credit to a customer, the amount of collateral to be obtained will be based on the credit assessment for the customer by management. Collateral held as security includes, but is not limited to the following:
 
   
Floating charges on all assets and businesses of the customer
 
   
Specific or related guarantees
 
   
Debt guarantees from customers and loan agreements with favorable and unfavorable covenant terms
The carrying amount of the financial assets, without taking into account any collateral held or credit enhancements, represents Sony’s maximum exposure to credit risk on these assets. For maximum exposure to credit risk of securities to which impairment requirements in IFRS 9 “Financial Instrument” (“IFRS 9”) are not applied without taking into account any collateral held or other credit enhancements, refer to Note 5.
In the Financial Services segment, housing loans have sufficient collateral, which results in no significant loss allowance being recognized. In addition, certain securities received as collateral for short-term lending transactions are permitted to be sold or repledged. The fair value of the securities which were not sold or repledged as collateral was 4,691 
million yen
 as
of March 31, 2023 and
no
ne
as of March 31, 2024. None of the securities were sold or repledged as collateral as of March 31, 2023 or 2024. The securities are not recognized in the consolidated statements of financial position until being sold or repledged as collateral. 
 

(c)
Credit risk exposure by risk rating grades
Credit risk exposure by risk rating grades as of March 31, 2023 and 2024, is as follows:
Trade and other receivables, and contract assets including
non-current
other receivables in the Pictures segment
 
    
Yen in millions
 
    
March 31
 
    
2023
    
2024
 
Outstanding receivables by overview period of overdue (Gross carrying amount)
     
Not past due or due within 30 days
     1,849,112        2,224,058  
Due over 30 to 90 days
     46,332        47,942  
Due over 90 days
     63,519        75,740  
  
 
 
    
 
 
 
Total
      1,958,963        2,347,740  
  
 
 
    
 
 
 
Debt securities
Debt securities held in the Financial Services segment are substantially all composed of investment grade debt securities, and, as a financial instrument subject to IFRS 9 impairment requirements,
12-month
expected losses are recorded.
The following table shows an analysis of the gross carrying amount for debt securities measured at amortized cost or at fair value through other comprehensive income based on a credit rating system in the Financial Services segment, which is primarily a composite of external credit ratings as of March 31, 2023 and 2024.
 
    
Yen in millions
 
    
March 31
 
    
2023

Restated
    
2024
 
Debt securities by credit ratings (Gross carrying amount)
     
AAA
     536,009        659,016  
AA
     2,807,684        3,122,639  
A
     7,328,136        7,111,836  
BBB
     9,625        15,668  
Other
     6,434        3,004  
  
 
 
    
 
 
 
Total
     10,687,888        10,912,163  
  
 
 
    
 
 
 
Loans
Loans held in the banking business in the Financial Services segment are regularly reassessed by the credit ratings of debtors, and as a financial instrument subject to IFRS 9 impairment requirements,
12-month
or lifetime expected credit losses are recorded depending on whether or not the credit risk has increased significantly since initial recognition or not.
 
The following table shows an analysis of the gross carrying amount for loans measured at amortized cost based on credit ratings by debtors in the banking business in the Financial Services segment as of March 31, 2023 and 2024.
 
    
Yen in millions
 
    
March 31, 2023
 
    
Normal*
    
Other than Normal
    
Total
 
    
12-month

expected
credit

losses
    
Lifetime

expected
credit

losses
    
Sub total
    
12-month

expected
credit

losses
    
Lifetime

expected
credit

losses
    
Sub total
 
Loans
                    
Housing loans
     3,124,410        140        3,124,550        2,173        3,350        5,523        3,130,073  
Other
     16,852        242        17,094        4        74        78        17,172  
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
 
Total
     3,141,262        382        3,141,644        2,177        3,424        5,601        3,147,245  
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
 
 
    
Yen in millions
 
    
March 31, 2024
 
    
Normal*
    
Other than Normal
    
Total
 
    
12-month

expected
credit

losses
    
Lifetime

expected
credit

losses
    
Sub total
    
12-month

expected
credit

losses
    
Lifetime

expected
credit

losses
    
Sub total
 
Loans
                                                                                                    
Housing loans
     3,570,142        247        3,570,389        1,998        2,706        4,704        3,575,093  
Other
     15,755        378        16,133        5        96        101        16,234  
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
 
Total
     3,585,897        625        3,586,522        2,003        2,802        4,805        3,591,327  
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
 
 
*
Normal is defined as borrowers who have strong results and no particular problems with their financial position.
 
(d)
Credit risk for debt securities designated to be measured at fair value through profit or loss
The credit risk exposures for debt securities designated to be measured at fair value through profit or loss were 1,486,566 million yen, and 1,243,109 million yen as of March 31, 2023 and 2024, respectively. The changes in the fair value attributable to the changes in credit risk were an increase of 509 million yen for the fiscal year ended March 31, 2023 and a decrease of 969 million yen for the fiscal year ended March 31, 2024. The cumulative changes were an increase of 2,535 million yen and 1,566 million yen as of March 31, 2023 and 2024, respectively. The amounts as of March 31, 2023 have been restated in accordance with IFRS 17.
 
(7)
Market risks for the banking business
In the banking business, by formulating and conforming with market risk management policies, Sony manages the risk of loss for when the value of assets and liabilities (including
off-balance-sheet
items), and income from assets and liabilities could be adversely affected by changes in various market risk factors, such as interest rates, exchange rates and stock prices. Market risk management policies specify details such as risk management methods and procedures. Based on ALM and risk management policies determined by the banking subsidiary’s Board of Directors, an ALM committee and a risk management committee typically meet once each month to understand and confirm actual conditions and deliberate future measures and risk conditions. On a daily basis, the risk management division maintains an overall understanding of interest, exchange rates and durations of financial assets and liabilities, and monitors Value at Risk (“VaR”), which quantifies the maximum expected loss which could occur during a given holding period and at a given probability, and interest rate sensitivity analysis, and confirms regulatory compliance. Sony also conducts interest rate swaps and other derivative transactions to hedge against interest and exchange rate fluctuation risks. VaR is calculated by the historical method
(time period:
 
250
days, confidence level:
99.0
%)
and is used for quantitative analysis in managing interest and exchange rate fluctuation risks. The total market risk volume as of March 31, 2023 and 2024
was
21,433
 million yen and
18,046
 
million yen, respectively. VaR
is based on the assumption that risk parameters other than interest rates and exchange rates are fixed. In the event that fluctuations exceed the rational forecast band for interest and exchange rates, the risk impact may exceed the amount calculated. The aforementioned market risk management is carried out primarily by the risk management division. The division periodically reports risk management conditions to the banking subsidiary’s Board of Directors and Executive Committee. In addition, the banking subsidiary’s internal audit division conducts audits
 of the risk management conditions
.
 

(8)
Effect of IBOR reform
Due to the reform and replacement of benchmark interest rates such as the London Interbank Offered Rate (“LIBOR”), the use of other interbank offered rates (“IBORs”) has become a priority for global regulators. The use of LIBOR ceased as of December 31, 2021, except for the use of certain U.S. dollar (“USD”) LIBORs. USD LIBOR was abolished and lost its representativeness as of June 2023.
As mentioned above, the JPY and GBP IBORs were abolished on December 31, 2021 and replaced by alternative interest rates such as the Tokyo Overnight Average Rate and the Sterling Overnight Index Average. USD LIBOR was abolished on June 30, 2023 and replaced by the Secured Overnight Financing Rate (SOFR).
For contracts that used USD LIBOR as of March 31, 2023, Sony has completed the amendment of agreements for the transition to alternative interest rate benchmarks as of March 31, 2024.