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Pay vs Performance Disclosure - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net income (loss) attributable to CSC common stockholders	$ 389	$ 91	$ (568)

X

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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