EQUITY - Reclassifications and Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Jun. 30, 2025	Jun. 30, 2024
Reclassifications and Taxes Related to Items of Other Comprehensive Income (Loss)
Other comprehensive income (loss)	$ 66	$ (48)
Accumulated Other Comprehensive Income (Loss)
Reclassifications and Taxes Related to Items of Other Comprehensive Income (Loss)
Other comprehensive income (loss), before tax amount	66	(46)
Other comprehensive income (loss), tax (expense) benefit		(2)
Other comprehensive income (loss)	66	(48)
Foreign Currency Translation Adjustments
Reclassifications and Taxes Related to Items of Other Comprehensive Income (Loss)
Other comprehensive income (loss), before tax amount	71	(49)
Other comprehensive income (loss)	71	(49)
Foreign Currency Translation Adjustments Excluding Net Investment Hedges
Reclassifications and Taxes Related to Items of Other Comprehensive Income (Loss)
Unrealized gains (losses) arising during the period, before tax amount	222	(63)
Unrealized gains (losses) arising during the period, net of tax amount	222	(63)
Unrealized Gains (Losses) on Net Investment Hedges
Reclassifications and Taxes Related to Items of Other Comprehensive Income (Loss)
Unrealized gains (losses) arising during the period, before tax amount	(152)	14
Unrealized gains (losses) arising during the period, net of tax amount	(152)	14
Unrealized Gains (Losses) on Cash Flow Hedges
Reclassifications and Taxes Related to Items of Other Comprehensive Income (Loss)
Unrealized gains (losses) arising during the period, before tax amount	(10)	(1)
Unrealized gains (losses) arising during the period, tax (expense) benefit	1	(1)
Unrealized gains (losses) arising during the period, net of tax amount	(9)	(2)
Reclassification/amortization, before tax amount	2
Reclassification/amortization, net of tax amount	2
Other comprehensive income (loss), before tax amount	(8)	(1)
Other comprehensive income (loss), tax (expense) benefit	1	(1)
Other comprehensive income (loss)	(7)	(2)
Net Change Retirement-Related Benefit Plans
Reclassifications and Taxes Related to Items of Other Comprehensive Income (Loss)
Reclassification/amortization, before tax amount	3	4
Reclassification/amortization, tax (expense) benefit	(1)	(1)
Reclassification/amortization, net of tax amount	2	3
Other comprehensive income (loss)	$ 2	$ 3

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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