Summary of Significant Accounting Policies (Policies)	9 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation In order to make this report easier to read, DXC refers throughout to (i) the interim unaudited Condensed Consolidated Financial Statements as the “financial statements,” (ii) the Condensed Consolidated Statements of Operations as the “statements of operations,” (iii) the Condensed Consolidated Statements of Comprehensive (Loss) Income as the “statements of comprehensive (loss) income,” (iv) the Condensed Consolidated Balance Sheets as the “balance sheets,” and (v) the Condensed Consolidated Statements of Cash Flows as the “statements of cash flows.” In addition, references are made throughout to the numbered Notes to the Condensed Consolidated Financial Statements (“Notes”) in this Quarterly Report on Form 10-Q. The accompanying financial statements include the accounts of DXC, its consolidated subsidiaries, and those business entities in which DXC maintains a controlling interest. Investments in business entities in which the Company does not have control, but has the ability to exercise significant influence over operating and financial policies, are accounted for by the equity method. Other investments are accounted for by the cost method. Non-controlling interests are presented as a separate component within equity in the balance sheets. Net earnings attributable to the non-controlling interests are presented separately in the statements of operations and comprehensive (loss) income attributable to non-controlling interests are presented separately in the statements of comprehensive (loss) income. All intercompany transactions and balances have been eliminated. Certain amounts reported in the previous year have been reclassified to conform to the current year presentation. The financial statements of the Company have been prepared in accordance with the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) for quarterly reports and accounting principles generally accepted in the United States (“GAAP”). Certain disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules. These financial statements should therefore be read in conjunction with the audited consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2022 (“fiscal 2022”).
Use of Estimates	Use of EstimatesThe preparation of the financial statements, in accordance with GAAP, requires the Company’s management to make estimates and assumptions that affect reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expense during the reporting period. The Company bases its estimates on assumptions regarding historical experience, currently available information, and anticipated developments that it believes are reasonable and appropriate. However, because the use of estimates involves an inherent degree of uncertainty, actual results could differ from those estimates. Estimates are used for, but are not limited to, contracts accounted for using the percentage-of-completion method, cash flows used in the evaluation of impairment of goodwill and other long-lived assets, reserves for uncertain tax positions, valuation allowances on deferred tax assets, loss accruals for litigation, and obligations related to our pension plans. In the opinion of the Company’s management, the accompanying financial statements contain all adjustments necessary, including those of a normal recurring nature, to fairly present the financial statements. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the full fiscal year.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently issued ASUs effective after December 31, 2022 are not expected to have a material effect on DXC’s condensed consolidated financial statements.

Summary of Significant Accounting Policies (Policies)

9 Months Ended

Dec. 31, 2022

In order to make this report easier to read, DXC refers throughout to (i) the interim unaudited Condensed Consolidated Financial Statements as the “financial statements,” (ii) the Condensed Consolidated Statements of Operations as the “statements of operations,” (iii) the Condensed Consolidated Statements of Comprehensive (Loss) Income as the “statements of comprehensive (loss) income,” (iv) the Condensed Consolidated Balance Sheets as the “balance sheets,” and (v) the Condensed Consolidated Statements of Cash Flows as the “statements of cash flows.” In addition, references are made throughout to the numbered Notes to the Condensed Consolidated Financial Statements (“Notes”) in this Quarterly Report on Form 10-Q.

The accompanying financial statements include the accounts of DXC, its consolidated subsidiaries, and those business entities in which DXC maintains a controlling interest. Investments in business entities in which the Company does not have control, but has the ability to exercise significant influence over operating and financial policies, are accounted for by the equity method. Other investments are accounted for by the cost method. Non-controlling interests are presented as a separate component within equity in the balance sheets. Net earnings attributable to the non-controlling interests are presented separately in the statements of operations and comprehensive (loss) income attributable to non-controlling interests are presented separately in the statements of comprehensive (loss) income. All intercompany transactions and balances have been eliminated. Certain amounts reported in the previous year have been reclassified to conform to the current year presentation.

The financial statements of the Company have been prepared in accordance with the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) for quarterly reports and accounting principles generally accepted in the United States (“GAAP”). Certain disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules. These financial statements should therefore be read in conjunction with the audited consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2022 (“fiscal 2022”).

Use of Estimates

Use of EstimatesThe preparation of the financial statements, in accordance with GAAP, requires the Company’s management to make estimates and assumptions that affect reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expense during the reporting period. The Company bases its estimates on assumptions regarding historical experience, currently available information, and anticipated developments that it believes are reasonable and appropriate. However, because the use of estimates involves an inherent degree of uncertainty, actual results could differ from those estimates. Estimates are used for, but are not limited to, contracts accounted for using the percentage-of-completion method, cash flows used in the evaluation of impairment of goodwill and other long-lived assets, reserves for uncertain tax positions, valuation allowances on deferred tax assets, loss accruals for litigation, and obligations related to our pension plans. In the opinion of the Company’s management, the accompanying financial statements contain all adjustments necessary, including those of a normal recurring nature, to fairly present the financial statements. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the full fiscal year.

Recent Accounting Pronouncements

Recently issued ASUs effective after December 31, 2022 are not expected to have a material effect on DXC’s condensed consolidated financial statements.