v3.26.3
Derivative Financial Instruments and Hedging (Tables)
6 Months Ended
Sep. 30, 2026
Derivative Instruments, Gain (Loss) [Line Items]  
Schedule of Effect of Components Excluded From the Assessment of Hedge Effectiveness on the Consolidated Statements of Income
Fair value hedges
 
     Millions of yen  
     Gains (losses) recognized in income  
     Life insurance premiums and related
investment income
     Interest expense  
Foreign exchange contracts
   ¥ 8,761      ¥ (4 ) 
The carrying amount of hedged assets and liabilities recognized in balance sheets in fair value hedges and the cumulative amount of fair value hedging adjustments included in the carrying amount (excluding the effect of changes in foreign exchange rates) at March 31, 2026 is as follows.
 
Assets as hedged items in fair value hedges
    
Liabilities as hedged items in fair value hedges
 
     Millions of yen           Millions of yen  
Consolidated balance
sheets location
   Carrying
amount
     The cumulative
amount of fair value
hedging adjustments
included in the
carrying amount
    
Consolidated balance
sheets location
   Carrying
amount
     The cumulative
amount of fair value
hedging adjustments
included in the
carrying amount
 
Investment in Securities
   ¥ 701,086      ¥ 10,090      Long-term Debt    ¥ 23,000      ¥ 0  
Fair value hedges
 
 
  
Millions of yen
 
 
  
Gains (losses) recognized in income
 
 
  
Life insurance premiums and related
investment income
 
  
Interest expense
 
 
Other (income)
and expense
 
Interest rate swap agreements
  
¥
0
 
  
¥
0
 
 
¥
4
 
Foreign exchange contracts
  
 
8,285
 
  
 
(17
) 
 
 
0
 
The carrying amount of hedged assets and liabilities recognized in balance sheets in fair value hedges and the cumulative amount of fair value hedging adjustments included in the carrying amount (excluding the effect of changes in foreign exchange rates) at September 30, 2026 is as follows.
 
Assets as hedged items in fair value hedges
    
Liabilities as hedged items in fair value hedges
 
    
Millions of yen
         
Millions of yen
 
Consolidated balance
sheets location
  
Carrying
amount
    
The cumulative
amount of fair value
hedging adjustments
included in the
carrying amount
    
Consolidated balance
sheets location
  
Carrying
amount
    
The cumulative
amount of fair value
hedging adjustments
included in the
carrying amount
 
Investment in Securities
   ¥ 718,569      ¥ 7,941     
Long-term Debt
   ¥ 14,500      ¥ 0  
Notional Amounts of Derivative Instruments and Other, Fair Values of Derivative Instruments and Other before Offsetting
Notional amounts of derivative instruments and other, fair values of derivative instruments and other before offsetting at March 31, 2026 and September 30, 2026 are as follows.
March 31, 2026
 
          Derivative assets   Derivative liabilities
    Notional
amount
     Fair value     
Consolidated balance
sheets location
   Fair value     
Consolidated balance
sheets location
    Millions
of yen
    Millions
of yen
        Millions
of yen
     
Derivatives designated as hedging instruments and other:
         
Interest rate swap agreements
  ¥ 615,793     ¥ 26,273     Other Assets   ¥ 2,287     Other Liabilities
Options held/written and other
    76,234       0         —     15,426     Other Liabilities
Futures, foreign exchange contracts
    1,048,627       3,704     Other Assets     70,789     Other Liabilities
Foreign currency swap agreements
    482,092       41,090     Other Assets     12     Other Liabilities
Foreign currency long-term debt
    83,286       0         —     0         —
Derivatives not designated as hedging instruments:
         
Interest rate swap agreements
  ¥ 2,274     ¥ 85     Other Assets   ¥ 2     Other Liabilities
Options held/written and other
      774,332       17,402     Other Assets     6,117     Other Liabilities
Futures, foreign exchange contracts*
    1,284,971       65,959     Other Assets     23,402     Other Liabilities
Credit derivatives held/written
    1,372       0         —     23     Other Liabilities
 
*
The notional amounts of futures and foreign exchange contracts in the above table include futures contracts of ¥1,741 million and foreign exchange contracts of ¥964 million to economically hedge the minimum guarantee risk of variable annuity and variable life insurance contracts at March 31, 2026, respectively. Derivative assets in the above table include fair value of the futures and foreign exchange contracts before offsetting of ¥47 million and ¥8 million and derivative liabilities include fair value of the futures and foreign exchange contracts before offsetting of ¥6 million and ¥23 million at March 31, 2026, respectively.
September 30, 2026
 
          Derivative assets   Derivative liabilities
    Notional
amount
     Fair value     
Consolidated balance
sheets location
   Fair value     
Consolidated balance
sheets location
    Millions
of yen
    Millions
of yen
        Millions
of yen
     
Derivatives designated as hedging instruments and other:
         
Interest rate swap agreements
  ¥ 541,023     ¥ 28,839     Other Assets   ¥ 1,802     Other Liabilities
Options held/written and other
    88,466       361     Other Assets     17,129     Other Liabilities
Futures, foreign exchange contracts
    1,121,027       11,282     Other Assets     23,369     Other Liabilities
Foreign currency swap agreements
    482,102       26,895     Other Assets     6,170     Other Liabilities
Foreign currency long-term debt
    81,968       0         —     0         —
Derivatives not designated as hedging instruments:
         
Interest rate swap agreements
  ¥ 16,579     ¥ 119     Other Assets   ¥ 59     Other Liabilities
Options held/written and other
    877,893       34,258     Other Assets     20,914     Other Liabilities
Futures, foreign exchange contracts*
    1,727,413       24,679     Other Assets     24,213     Other Liabilities
Credit derivatives held/written
    1,169       0         —     13     Other Liabilities
 
*
The notional amounts of futures and foreign exchange contracts in the above table include futures contracts of ¥940 million and foreign exchange contracts of ¥600 million to economically hedge the minimum guarantee risk of variable annuity and variable life insurance contracts at September 30, 2026, respectively. Derivative assets in the above table include fair value of the futures and foreign exchange contracts before offsetting of ¥4 million and ¥4 million and derivative liabilities include fair value of the futures and foreign exchange contracts before offsetting of ¥13 million and ¥2 million at September 30, 2026, respectively.
Credit Derivatives
The Company and its subsidiaries have contracted credit derivatives for the purpose of trading. Details of credit derivatives written as of March 31, 2026 and September 30, 2026 are as follows.
March 31, 2026
 
Types of derivatives
  
The events or circumstances
that would require the seller
to perform under the credit
derivative
   Maximum potential
amount of future
payment under the
credit derivative
     Approximate
remaining term
of the credit
derivative
     Fair value of
the credit
derivative
 
   Millions of yen      Millions of yen  
Credit default swap
   In case of credit event (bankruptcy, failure to pay, restructuring) occurring in underlying reference company *    ¥ 1,000       
Less than
two years
 
 
   ¥ (2 ) 
 
*
Underlying reference company’s credit ratings are A1 or better rated by rating agencies as of March 31, 2026.
September 30, 2026
 
Types of derivatives
  
The events or circumstances
that would require the seller
to perform under the credit
derivative
   Maximum potential
amount of future
payment under the
credit derivative
     Approximate
remaining term
of the credit
derivative
     Fair value of
the credit
derivative
 
   Millions of yen      Millions of yen  
Credit default swap
   In case of credit event (bankruptcy, failure to pay, restructuring) occurring in underlying reference company *    ¥ 1,000       
Less than
one year
 
 
   ¥ (0 ) 
 
*
Underlying reference company’s credit ratings are A1 or better rated by rating agencies as of September 30, 2026.
Cash flow hedges  
Derivative Instruments, Gain (Loss) [Line Items]  
Effect of Derivative Instruments on Consolidated Statements of Income, Pre-tax
(1) Cash flow hedges
 
     Millions of yen  
   Gains (losses) recognized
in other comprehensive
income on derivative
    Gains (losses) reclassified from
other comprehensive income (loss) into income
 
  Life insurance premiums
and related investment
income
     Interest expense     Other (income) and
expense
 
Interest rate swap agreements
   ¥ (2,575 )    ¥ 0      ¥ (121 )    ¥ 0  
Foreign exchange contracts
     298       0        945       (4,017 ) 
Foreign currency swap agreements
     5,174       0        1,124       (2,906 ) 
Options held/written and other
     (6,469 )      50        0       0  
(1) Cash flow hedges
 
    
Millions of yen
 
  
Gains (losses) recognized

in other comprehensive

income on derivative
   
Gains (losses) reclassified from

other comprehensive income (loss) into income
 
 
Life insurance premiums
and related investment
income
    
Interest expense
   
Other (income) and

expense
 
Interest rate swap agreements
   ¥ 9,760     ¥ 0      ¥ (286 )    ¥ 0  
Foreign exchange contracts
     182       0        0       0  
Foreign currency swap agreements
     (10,662 )     0        773       6,085  
Options held/written and other
     (3,873 )      152        0       0  
Fair value hedges  
Derivative Instruments, Gain (Loss) [Line Items]  
Effect of Derivative Instruments on Consolidated Statements of Income, Pre-tax
(2) Fair value hedges
 
     Millions of yen  
     Gains (losses) recognized in income
on derivative and other
    Gains (losses) recognized in income
on hedged item
 
     Life insurance premiums
and related investment
income
     Interest expense      Other (income) and
expense
    Life insurance premiums
and related investment
income
    Other (income) and
expense
 
Interest rate swap agreements
   ¥ 0      ¥ 0      ¥ (36 )    ¥ 0     ¥ (62 ) 
Foreign exchange contracts
     5,252        630        (2,995 )      (5,217 )      1,380  
(2) Fair value hedges
 
    
Millions of yen
 
  
Gains (losses) recognized in income

on derivative and other
   
Gains (losses) recognized in income

on hedged item
 
  
Life insurance premiums
and related investment
income
   
Interest expense
    
Other (income) and
expense
   
Life insurance premiums

and related investment

income
    
Other (income) and
expense
 
Foreign exchange contracts
   ¥ (10,047 )    ¥ 2,268      ¥ (2,160 )
 
  ¥ 10,082      ¥ 2,076  
Hedges of net investment in foreign operations  
Derivative Instruments, Gain (Loss) [Line Items]  
Effect of Derivative Instruments on Consolidated Statements of Income, Pre-tax
(3) Hedges of net investment in foreign operations
 
     Millions of yen  
   Gains (losses) recognized
in other comprehensive
income on derivative
and others
     Gains (losses) reclassified from
other comprehensive income (loss) into income
 
   Gains on sales of
subsidiaries and
equity method investments
and liquidation losses, net
     Interest expense  
Foreign exchange contracts
   ¥ 356      ¥ 9,890      ¥ 7,109  
Borrowings and bonds in foreign currencies
     4,554        0        0  
(3) Hedges of net investment in foreign operations
 
    
Millions of yen
 
  
Gains (losses) recognized

in other comprehensive

income on derivative

and others
   
Gains (losses) reclassified from

other comprehensive income (loss) into income
 
 
Gains on sales of
subsidiaries and

equity method investments

and liquidation losses, net
    
Interest expense
 
Foreign exchange contracts
   ¥ (955 )
 
  ¥ 0      ¥ 2,082  
Borrowings and bonds in foreign currencies
     1,210       0        0  
Derivatives not designated as hedging instruments  
Derivative Instruments, Gain (Loss) [Line Items]  
Effect of Derivative Instruments on Consolidated Statements of Income, Pre-tax
(4) Derivatives not designated as hedging instruments
 
     Millions of yen  
   Gains (losses) recognized in income on derivative  
   Life insurance premiums and
related investment income*1
    Interest expense*2     Other (income) and
expense
 
Interest rate swap agreements
   ¥ 0     ¥ 0     ¥ 33  
Futures
     (1,106 )      0       2,513  
Foreign exchange contracts
     (3,070 )      (2,436 )      (11,733 ) 
Credit derivatives held/written
     0       0       (2 ) 
Options held/written and other
     0       0       95  
 
*1
Futures and foreign exchange contracts in the above table include gains (losses) arising from futures and foreign exchange contracts held to economically hedge the minimum guarantee risk of variable annuity and variable life insurance contracts for the six months ended September 30, 2025 (see Note 17 “Income and Expenses Relating to Life Insurance Operations”).
*2
The portion of gains (losses) recognized in income on derivative arising from foreign exchange contracts that represents interest rate adjustments is recognized as interest expense.
(4) Derivatives not designated as hedging instruments
 
    
Millions of yen
 
  
Gains (losses) recognized in income on derivative
 
  
Life insurance premiums and
related investment income*1
   
Interest expense*2
   
Services income
   
Services expense
    
Other (income) and
expense
 
Interest rate swap agreements
   ¥ 0     ¥ 0     ¥ 0     ¥ 0      ¥ 15  
Futures
     (292 )      0       (2 )      15        1,946  
Foreign exchange contracts
     (386 )      (2,950 )      0       0        2,518  
Credit derivatives held/written
     0       0       0       0        (2 ) 
Options held/written and other
     0       0       0       0        (2,474 ) 
 
*1
Futures and foreign exchange contracts in the above table include gains (losses) arising from futures and foreign exchange contracts held to economically hedge the minimum guarantee risk of variable annuity and variable life insurance contracts for the six months ended September 30, 2026 (see Note 17 “Income and Expenses Relating to Life Insurance Operations”).
*2
The portion of gains (losses) recognized in income on derivative arising from foreign exchange contracts that represents interest rate adjustments is recognized as interest expense.