Pension Benefits - Summary of Pension Plan Assets Using Fair Value Hierarchy by Asset Class (Details) - USD ($) $ in Millions	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 110	$ 175	$ 4
Pension Plans, Defined Benefit | Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	174	681	$ 735
Pension Plans, Defined Benefit | Non-U.S. Plans | Investment Assets at Fair Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	144	641
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	7	382
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	27	84
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	110	175
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	7	15
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	7	15
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	18	38
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	0
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	18	38
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	0	6
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	0
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	0	6
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	0	11
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	0
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	0	11
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	7	361
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	0	336
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	7	25
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	0
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	110	173
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	110	173
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	2	37
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	30	40
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	0	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	2	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	$ 0	$ 2