Other Income, Net (Tables)

12 Months Ended

Mar. 31, 2022

Expense By Nature [Abstract]

Summary of Other Income

Other income consists of the following:

(Dollars in millions)
	Year ended March 31,
	2022		2021			2020
Interest income on financial assets carried at amortized cost		135	161			181
Interest income on financial assets fair valued through other comprehensive income		86	55			46
Dividend income on investments carried at fair value through profit or loss		—		1			—
Gain / (loss) on investments carried at fair value through profit or loss		24	10			26
Gain / (loss) on investments carried at fair value through other comprehensive income		—	11			6
Interest income on income tax refund		—	1			37
Exchange gains / (losses) on forward and options contracts		12		75			(66	)
Exchange gains / (losses) on translation of other assets and liabilities		24		(47	)	139
Others		27	30			26
		308		297		395