v3.25.1
Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Mar. 31, 2025
Equity [Abstract]  
Schedule of accumulated other comprehensive income (loss)
The following table summarizes the change in the components of accumulated other comprehensive loss, excluding noncontrolling interests, for the periods presented.
in millionsCurrency Translation
Cash Flow Hedges(1)
Postretirement Benefit Plans(2)
Total
Balance as of March 31, 2022
$(166)$(435)$(19)$(620)
Other comprehensive (loss) income before reclassifications
(127)675 79 627 
Amounts reclassified from accumulated other comprehensive loss, net
— (245)— (245)
Net current-period other comprehensive (loss) income
(127)430 79 382 
Balance as of March 31, 2023
$(293)$(5)$60 $(238)
Other comprehensive (loss) income before reclassifications
(47)74 (33)(6)
Amounts reclassified from accumulated other comprehensive loss, net
— (131)(6)(137)
Net current-period other comprehensive loss
(47)(57)(39)(143)
Balance as of March 31, 2024
$(340)$(62)$21 $(381)
Other comprehensive loss before reclassifications
(38)(89)(14)(141)
Amounts reclassified from accumulated other comprehensive loss, net
— 167 (3)164 
Net current-period other comprehensive (loss) income
(38)78 (17)23 
Balance as of March 31, 2025
$(378)$16 $4 $(358)
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(1)For additional information on our cash flow hedges, see Note 15 – Financial Instruments and Commodity Contracts.
(2)For additional information on our postretirement benefit plans, see Note 13 – Postretirement Benefit Plans.