XML 130 R104.htm IDEA: XBRL DOCUMENT

Pension Benefits - Schedule of Investments Measured at Fair Value (Details) - Level 3 - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plan, Level 3 [Roll Forward]
Fair value of plan assets at beginning of period	$ 110	$ 175
Return on assets	(7)	(65)
Fair value of plan assets at end of period	$ 103	$ 110

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References + Details