XML 71 R26.htm IDEA: XBRL DOCUMENT
v3.21.2

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Jun. 30, 2021
Accounting Policies [Abstract] |
Estimated Useful Lives | The estimated useful lives of assets are primarily as follows:
Data processing equipment | 5 to 10 years
Buildings | 20 to 40 years
Furniture and fixtures | 4 to 7 years
Schedule of Earnings Per Share, Basic and Diluted | The calculations of basic and diluted EPS are as follows:
Years ended June 30, |  | Basic |  | Effect of Employee Stock Option Shares |  | Effect of Employee Restricted Stock Shares |  | Diluted
2021 |  |  |  |  |  |  |  |
Net earnings |  | $ | 2,598.5 |  |  |  |  |  |  | $ | 2,598.5 |
Weighted average shares (in millions) |  | 426.3 |  |  | 0.8 |  |  | 1.0 |  |  | 428.1 |
EPS |  | $ | 6.10 |  |  |  |  |  |  | $ | 6.07 |
2020 |  |  |  |  |  |  |  |
Net earnings |  | $ | 2,466.5 |  |  |  |  |  |  | $ | 2,466.5 |
Weighted average shares (in millions) |  | 430.8 |  |  | 0.9 |  |  | 1.0 |  |  | 432.7 |
EPS |  | $ | 5.73 |  |  |  |  |  |  | $ | 5.70 |
2019 |  |  |  |  |  |  |  |
Net earnings |  | $ | 2,292.8 |  |  |  |  |  |  | $ | 2,292.8 |
Weighted average shares (in millions) |  | 435.0 |  |  | 1.0 |  |  | 1.6 |  |  | 437.6 |
EPS |  | $ | 5.27 |  |  |  |  |  |  | $ | 5.24 |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles | Recently Issued Accounting Pronouncements The following table summarizes recent ASU's issued by the Financial Accounting Standards Board (“FASB”) which have been assessed and are applicable to the Company:
Standard | Description | Effective Date | Effect on Financial Statements or Other Significant Matters
ASU 2018-14 Compensation-Retirement Benefits-Defined Benefit Plans | This update modifies the disclosure requirements for employers that sponsor defined benefit pension or other post-retirement plans by removing and adding certain disclosures for these plans. The eliminated disclosures include (a) the amounts in accumulated other comprehensive income expected to be recognized in net periodic benefit costs over the next fiscal year, and (b) the effects of a one percentage point change in assumed health care cost trend rates on the net periodic benefit costs and the benefit obligation for post-retirement health care benefits. Additional disclosures include descriptions of significant gains and losses affecting the benefit obligation for the period. The amendments in ASU 2018-14 would need to be applied on a retrospective basis. | July 1, 2021 (Fiscal 2022) | The adoption of this guidance will modify disclosures but will not have an impact on the Company's consolidated results of operations, financial condition, or cash flows.

X
- Definition [Table Text Block] for Estimated Useful lives for Property, Plant, and Equipment [Table] + References No definition available. + Details
Name: | adp_EstimatedUsefulLivesTableTextBlock
Namespace Prefix: | adp_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e725-108305 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
Name: | us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration