| Document and Entity Information - USD ($) $ in Millions | 12 Months Ended | | |
| Dec. 31, 2022 | Feb. 20, 2023 | Jun. 30, 2022 |
| Cover [Abstract] | | | |
| Document Type | 10-K/A | | |
| Amendment Flag | true | | |
| Document Period End Date | Dec. 31, 2022 | | |
| Document Fiscal Year Focus | 2022 | | |
| Document Fiscal Period Focus | FY | | |
| Entity Registrant Name | Ceridian HCM Holding Inc. | | |
| Entity Central Index Key | 0001725057 | | |
| Current Fiscal Year End Date | --12-31 | | |
| Entity Well-known Seasoned Issuer | Yes | | |
| Entity Current Reporting Status | Yes | | |
| Entity Voluntary Filers | No | | |
| Entity Filer Category | Large Accelerated Filer | | |
| Entity Small Business | false | | |
| Entity Emerging Growth Company | false | | |
| Document Financial Statement Error Correction [Flag] | false | | |
| Entity Shell Company | false | | |
| Entity Common Stock, Shares Outstanding | | 154,106,560 | |
| Entity Public Float | | | $ 7,084.4 |
| Entity File Number | 001-38467 | | |
| Entity Tax Identification Number | 46-3231686 | | |
| Entity Address Address Line1 | 3311 East Old Shakopee Road | | |
| Entity Address City Or Town | Minneapolis | | |
| Entity Address State Or Province | MN | | |
| Entity Address Postal Zip Code | 55425 | | |
| City Area Code | 952 | | |
| Local Phone Number | 853-8100 | | |
| Entity Interactive Data Current | Yes | | |
| Entity Incorporation State Country Code | DE | | |
| Document Annual Report | true | | |
| Document Transition Report | false | | |
| ICFR Auditor Attestation Flag | true | | |
| Title of 12(b) Security | Common Stock, $.01 par value | | |
| Trading Symbol | CDAY | | |
| Security Exchange Name | NYSE | | |
| Documents Incorporated by Reference | Portions of the Registrant’s Definitive Proxy Statement relating to the 2023 Annual Meeting of Stockholders, scheduled to be held on April 28, 2023, are incorporated by reference into Part III of this Form 10-K/A. | | |
| Auditor Name | KPMG LLP | | |
| Auditor Firm ID | 185 | | |
| Auditor Location | Minneapolis, Minnesota | | |
| Amendment Description | Ceridian HCM Holding Inc. (the “Company”) is filing this Amendment No. 1 on Form 10-K/A (this “Amendment” or “Form 10-K/A”) to our Annual Report on Form 10-K for the fiscal year ended December 31, 2022, which was filed with the U.S. Securities and Exchange Commission (the “SEC”) on March 1, 2023 (the “Original Form 10-K”) to make certain changes as described below.BackgroundAs previously disclosed in the Company’s earnings press release furnished as an exhibit to the Current Report on Form 8-K furnished with the SEC on November 1, 2023, the Company recently discovered an error in the presentation of one Canadian bank account balance within “customer funds” and “customer funds obligations” and related items on the Company’s consolidated balance sheets as of December 31, 2022 and 2021 and in the Company’s net cash provided by financing activities within its consolidated statements of cash flows in the three-year period ended December 31, 2022. There was an understatement of customer funds within current assets and a corresponding understatement of customer funds obligations within current liabilities on the Company’s consolidated balance sheets. As a result, the Company also erroneously presented certain changes related to customer funds and customer funds obligations on the Company’s consolidated statements of cash flows. However, the Company determined that the incorrect presentation did not result in a material misstatement of the Company’s financial statements and, accordingly, it does not need to restate its previously issued financial statements contained in the Original Form 10-K or in the Company’s Quarterly Reports on Form 10-Q for the quarters ended March 31, 2023 and June 30, 2023. Considering the foregoing, management reassessed the effectiveness of the Company’s internal control over financial reporting (“ICFR”) as of December 31, 2022, based on the framework established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. As a result of that reassessment, management identified a material weakness in its ICFR as the Company has determined that its control designed to assess the proper presentation of cash and cash equivalents for its Canada customer funds for financial reporting purposes was ineffective (“Canada Trust Material Weakness”). With regard to the Canada Trust Material Weakness, the Company has implemented an additional control and training to ensure proper classification and presentation of cash and cash equivalents for its Canada customer funds. The Company expects the Canada Trust Material Weakness will be fully remediated before December 31, 2023, but remediation will not be considered complete until the applicable controls operate for a sufficient period of time subsequent to the additional training to enable management to test and to conclude on the operating effectiveness of the control.Further, while reassessing the effectiveness of the Company’s ICFR, management identified, in the aggregate, a material weakness related to controls over certain Professional Services and Powerpay revenue accounts as of December 31, 2022 (the "Risk Assessment Material Weakness"). The Company has enhanced its risk assessment process and information technology general controls to prevent misstatements in Professional Services revenue accounts. The Company also expects to implement additional controls to prevent misstatements in Powerpay revenue accounts. The Company expects the Risk Assessment Material Weakness will be fully remediated before December 31, 2023, but remediation will not be considered complete until the applicable controls operate for a sufficient period of time to enable management to test and to conclude on the operating effectiveness of the controls.In light of the Canada Trust Material Weakness and the Risk Assessment Material Weakness, which continue to exist as of December 31, 2022, the Company has performed additional analyses and other procedures to enable management to conclude that the existence of the material weaknesses did not result in a material misstatement of the Company’s previously issued financial statements.As a result of the Canada Trust Material Weakness and the Risk Assessment Material Weakness, the Company concluded that its disclosure controls and procedures and ICFR were ineffective as of December 31, 2022. As a result, the Company is (a) amending and restating Part II, Item 9A Controls and Procedures in this Form 10-K/A to update its conclusions regarding the effectiveness of its disclosure controls and procedures and its internal control over financial reporting as of December 31, 2022 as a result of the material weaknesses and (b) including in Part II, Item 8, the issued audit report of KPMG LLP (“KPMG”), the Company’s independent registered public accounting firm (Auditor Firm ID: 185), as of December 31, 2022 regarding the Company’s internal control over financial reporting as a result of the material weaknesses. In accordance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), the Company is also including with this Form 10-K/A currently dated consent of KPMG and certifications of the Company’s principal executive officer and principal financial officer (included in Part IV, Item 15. “Exhibits, Financial Statement Schedules” and attached as Exhibits 23.1, 31.1, 31.2, 32.1, and 32.2). This Form 10-K/A should be read in conjunction with the Original Form 10-K, which continues to speak as of the date of the Original Form 10-K. Except as specifically noted above, this Form 10-K/A does not modify or update disclosures in the Original Form 10-K. Accordingly, this Form 10-K/A does not reflect events occurring after the date of the Original Form 10-K or modify or update any related or other disclosures, other than those discussed above. No other portions of the Original Form 10-K were changed.Amendments of 2023 Quarterly Reports on Form 10-QIn addition to this Form 10-K/A, the Company is concurrently filing amendments to its Quarterly Reports on Form 10-Q for the periods ended March 31, 2023 and June 30, 2023. | | |
