FAIR VALUE MEASUREMENT OF ASSETS AND LIABILITIES - Assets and Liabilities Measured at Fair Value (Details) - Recurring Basis - USD ($) $ in Millions	Mar. 31, 2021	Mar. 31, 2020
Money market funds and time deposits
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	$ 1,507	$ 404
Foreign exchange forward contracts
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	59	104
Total liabilities	(48)	(150)
Mutual funds, money market accounts and equity securities
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	48	49
Level 1 | Money market funds and time deposits
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	0	0
Level 1 | Foreign exchange forward contracts
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	0	0
Total liabilities	0	0
Level 1 | Mutual funds, money market accounts and equity securities
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	0	0
Level 2 | Money market funds and time deposits
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	1,507	404
Level 2 | Foreign exchange forward contracts
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	59	104
Total liabilities	(48)	(150)
Level 2 | Mutual funds, money market accounts and equity securities
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	48	49
Level 3 | Money market funds and time deposits
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	0	0
Level 3 | Foreign exchange forward contracts
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	0	0
Total liabilities	0	0
Level 3 | Mutual funds, money market accounts and equity securities
Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis
Total assets	$ 0	$ 0