Pension Benefits - Summary of Pension Plan Assets Using Fair Value Hierarchy by Asset Class (Details) - USD ($) $ in Millions	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 175	$ 4
Pension Plans, Defined Benefit | Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	681	735	$ 594
Pension Plans, Defined Benefit | Non-U.S. Plans | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	641	683
Pension Plans, Defined Benefit | Non-U.S. Plans | Level 1 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	382	162
Pension Plans, Defined Benefit | Non-U.S. Plans | Level 2 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	84	517
Pension Plans, Defined Benefit | Non-U.S. Plans | Level 3 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	175	4
Pension Plans, Defined Benefit | Non-U.S. Plans | Cash and cash equivalents | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	15	5
Pension Plans, Defined Benefit | Non-U.S. Plans | Cash and cash equivalents | Level 1 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	15	5
Pension Plans, Defined Benefit | Non-U.S. Plans | Cash and cash equivalents | Level 2 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Cash and cash equivalents | Level 3 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Equity commingled funds | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	38	181
Pension Plans, Defined Benefit | Non-U.S. Plans | Equity commingled funds | Level 1 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	64
Pension Plans, Defined Benefit | Non-U.S. Plans | Equity commingled funds | Level 2 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	38	117
Pension Plans, Defined Benefit | Non-U.S. Plans | Equity commingled funds | Level 3 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Government securities | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	149
Pension Plans, Defined Benefit | Non-U.S. Plans | Government securities | Level 1 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	5
Pension Plans, Defined Benefit | Non-U.S. Plans | Government securities | Level 2 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	144
Pension Plans, Defined Benefit | Non-U.S. Plans | Government securities | Level 3 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Corporate bonds | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	36
Pension Plans, Defined Benefit | Non-U.S. Plans | Corporate bonds | Level 1 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	6
Pension Plans, Defined Benefit | Non-U.S. Plans | Corporate bonds | Level 2 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	30
Pension Plans, Defined Benefit | Non-U.S. Plans | Corporate bonds | Level 3 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Fixed income commingled funds | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	361	274
Pension Plans, Defined Benefit | Non-U.S. Plans | Fixed income commingled funds | Level 1 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	336	51
Pension Plans, Defined Benefit | Non-U.S. Plans | Fixed income commingled funds | Level 2 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	25	222
Pension Plans, Defined Benefit | Non-U.S. Plans | Fixed income commingled funds | Level 3 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	1
Pension Plans, Defined Benefit | Non-U.S. Plans | Annuity contracts | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	173	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Annuity contracts | Level 1 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Annuity contracts | Level 2 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Annuity contracts | Level 3 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	173	0
Pension Plans, Defined Benefit | Non-U.S. Plans | Real estate funds and Other | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	37	38
Pension Plans, Defined Benefit | Non-U.S. Plans | Real estate funds and Other | Assets held at NAV practical expedient
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40	52
Pension Plans, Defined Benefit | Non-U.S. Plans | Real estate funds and Other | Level 1 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	31	31
Pension Plans, Defined Benefit | Non-U.S. Plans | Real estate funds and Other | Level 2 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4	4
Pension Plans, Defined Benefit | Non-U.S. Plans | Real estate funds and Other | Level 3 | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 2	$ 3