Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment — gross	$ 4,662	$ 5,186
Less: accumulated depreciation	3,409	3,515
Property and equipment, net	1,253	1,671
Depreciation	351	433	$ 519
Land, buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment — gross	1,545	1,917
Computers and related equipment
Property, Plant and Equipment [Line Items]
Property and equipment — gross	2,977	3,142
Furniture and other equipment
Property, Plant and Equipment [Line Items]
Property and equipment — gross	134	118
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment — gross	$ 6	$ 9

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

+ References

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Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount, before accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

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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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