RESTRUCTURING CHARGES - Provisions, Respective Payments and Remaining Accrued Balance (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	$ 50	$ 43	$ 53
Provision for charges incurred	175	27	15
Non-cash charges incurred	(17)	(2)	(4)
Balance at the end of the period	80	50	43
Less: Current portion (classified as other current liabilities)	79
Accrued restructuring costs, net of current portion (classified as other non-current liabilities)	1
Prior Years
Restructuring Reserve [Roll Forward]
Cash payments for charges incurred	(13)	(7)	(15)
Current Year
Restructuring Reserve [Roll Forward]
Cash payments for charges incurred	(115)	(11)	(6)
Severance
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	44	35	45
Provision for charges incurred	161	27	11
Non-cash charges incurred	0	0	0
Balance at the end of the period	77	44	35
Less: Current portion (classified as other current liabilities)	76
Accrued restructuring costs, net of current portion (classified as other non-current liabilities)	1
Severance | Prior Years
Restructuring Reserve [Roll Forward]
Cash payments for charges incurred	(13)	(7)	(15)
Severance | Current Year
Restructuring Reserve [Roll Forward]
Cash payments for charges incurred	(115)	(11)	(6)
Long-Lived Asset Impairment
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	0	0	0
Provision for charges incurred	14	0	1
Non-cash charges incurred	(14)	0	(1)
Balance at the end of the period	0	0	0
Less: Current portion (classified as other current liabilities)	0
Accrued restructuring costs, net of current portion (classified as other non-current liabilities)	0
Long-Lived Asset Impairment | Prior Years
Restructuring Reserve [Roll Forward]
Cash payments for charges incurred	0	0	0
Long-Lived Asset Impairment | Current Year
Restructuring Reserve [Roll Forward]
Cash payments for charges incurred	0	0	0
Other Exit Costs
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	6	8	8
Provision for charges incurred	0	0	3
Non-cash charges incurred	(3)	(2)	(3)
Balance at the end of the period	3	6	8
Less: Current portion (classified as other current liabilities)	3
Accrued restructuring costs, net of current portion (classified as other non-current liabilities)	0
Other Exit Costs | Prior Years
Restructuring Reserve [Roll Forward]
Cash payments for charges incurred	0	0	0
Other Exit Costs | Current Year
Restructuring Reserve [Roll Forward]
Cash payments for charges incurred	$ 0	$ 0	$ 0