Insurance-related accounts (Tables)

12 Months Ended

Mar. 31, 2019

Insurance [Abstract]

Policyholders' Account in Life Insurance Business

Policyholders’ account in the life insurance business is comprised of the following:

	Yen in millions
	March 31
	2018		2019
Universal life insurance		1,951,906		2,104,646
Investment contracts		738,404		816,903
Other		130,392		126,653
Total		2,820,702		3,048,202