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Derivative Financial Instruments and Hedging (Notional Amounts of Derivative Instruments and Other, Fair Values of Derivative Instruments and Other before Offsetting) (Detail) - JPY (¥)
¥ in Millions

Mar. 31, 2023

Mar. 31, 2022

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

¥ 72,398

¥ 51,366

Derivative liabilities, Fair value

71,366

105,705

Interest rate swap agreements | Derivatives designated as hedging instruments and other

Derivatives, Fair Value [Line Items]

Notional amount

568,864

511,224

Interest rate swap agreements | Derivatives designated as hedging instruments and other | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

22,798

9,570

Interest rate swap agreements | Derivatives designated as hedging instruments and other | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

3,311

8,170

Interest rate swap agreements | Derivatives not designated as hedging instruments

Derivatives, Fair Value [Line Items]

Notional amount

464

432

Interest rate swap agreements | Derivatives not designated as hedging instruments | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

0

0

Interest rate swap agreements | Derivatives not designated as hedging instruments | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

8

12

Options held/written and other | Derivatives designated as hedging instruments and other

Derivatives, Fair Value [Line Items]

Notional amount

9,486

847

Options held/written and other | Derivatives designated as hedging instruments and other | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

52

11

Options held/written and other | Derivatives designated as hedging instruments and other | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

88

0

Options held/written and other | Derivatives not designated as hedging instruments

Derivatives, Fair Value [Line Items]

Notional amount

632,211

794,774

Options held/written and other | Derivatives not designated as hedging instruments | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

30,435

25,653

Options held/written and other | Derivatives not designated as hedging instruments | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

28,335

21,562

Futures, foreign exchange contracts | Derivatives designated as hedging instruments and other

Derivatives, Fair Value [Line Items]

Notional amount

933,988

944,282

Futures, foreign exchange contracts | Derivatives designated as hedging instruments and other | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

2,735

445

Futures, foreign exchange contracts | Derivatives designated as hedging instruments and other | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

26,217

51,953

Futures, foreign exchange contracts | Derivatives not designated as hedging instruments

Derivatives, Fair Value [Line Items]

Notional amount

788,361

^[1]

725,685

^[2]

Futures, foreign exchange contracts | Derivatives not designated as hedging instruments | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

15,050

^[1]

15,561

^[2]

Futures, foreign exchange contracts | Derivatives not designated as hedging instruments | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

10,978

^[1]

19,490

^[2]

Foreign currency swap agreements | Derivatives designated as hedging instruments and other

Derivatives, Fair Value [Line Items]

Notional amount

99,878

78,445

Foreign currency swap agreements | Derivatives designated as hedging instruments and other | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

1,325

126

Foreign currency swap agreements | Derivatives designated as hedging instruments and other | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

2,426

4,518

Foreign currency long-term debt | Derivatives designated as hedging instruments and other

Derivatives, Fair Value [Line Items]

Notional amount

748,396

690,381

Foreign currency long-term debt | Derivatives designated as hedging instruments and other | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

0

0

Foreign currency long-term debt | Derivatives designated as hedging instruments and other | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

0

¥ 0

Credit derivatives held/written | Derivatives not designated as hedging instruments

Derivatives, Fair Value [Line Items]

Notional amount

1,098

Credit derivatives held/written | Derivatives not designated as hedging instruments | Other assets

Derivatives, Fair Value [Line Items]

Derivative assets, Fair value

3

Credit derivatives held/written | Derivatives not designated as hedging instruments | Other liabilities

Derivatives, Fair Value [Line Items]

Derivative liabilities, Fair value

¥ 3

[1]

The notional amounts of futures and foreign exchange contracts in the above table include futures contracts of ¥14,758 million and foreign exchange contracts of ¥5,554 million to economically hedge the minimum guarantee risk of variable annuity and variable life insurance contracts at March 31, 2023, respectively. Derivative assets in the above table include fair value of the futures and foreign exchange contracts before offsetting of ¥52 million and ¥12 million and derivative liabilities include fair value of the futures and foreign exchange contracts before offsetting of ¥200 million and ¥179 million at March 31, 2023, respectively.

[2]

The notional amounts of futures and foreign exchange contracts in the above table include futures contracts of ¥15,088 million and foreign exchange contracts of ¥7,415 million to economically hedge the minimum guarantee risk of variable annuity and variable life insurance contracts at March 31, 2022, respectively. Derivative assets in the above table include fair value of the futures and foreign exchange contracts before offsetting of ¥79 million and ¥57 million and derivative liabilities include fair value of the futures and foreign exchange contracts before offsetting of ¥1,325 million and ¥378 million at March 31, 2022, respectively.

X

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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X

- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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