New Accounting Pronouncements	12 Months Ended
New Accounting Pronouncements	Dec. 29, 2019
Accounting Policies [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements Recently Adopted In June 2018, the FASB issued ASU 2018-07 simplifying the accounting for nonemployee share-based payment awards by expanding the scope of ASC Topic 718, Compensation - Stock Compensation, to include share-based payment transactions for acquiring goods and services from nonemployees. Under the new standard, most of the guidance on stock compensation payments to nonemployees would be aligned with the requirements for share-based payments granted to employees. The ASU is effective for annual reporting periods beginning after December 15, 2018, including interim reporting periods within those annual reporting periods, with early adoption permitted. The adoption of this guidance did not have a material impact on our consolidated financial statements and related disclosures. In January 2017, the FASB issued ASU 2017-04 simplifying the accounting for goodwill impairment for all entities. The new guidance eliminates the requirement to calculate the implied fair value of goodwill (Step 2 of the current two-step goodwill impairment test under ASC 350). Instead, entities will record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value (Step 1 of the current two-step goodwill impairment test). The ASU is effective prospectively for reporting periods beginning after December 15, 2019, with early adoption permitted for annual and interim goodwill impairment testing dates after January 1, 2017. We elected to early adopt ASU 2017-04 as of year-end 2018 and the adoption of this ASU did not have an impact on our goodwill impairment testing process or our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02 amending the existing accounting standards for lease accounting and requiring lessees to recognize lease assets and lease liabilities for all leases with lease terms of more than 12 months, including those classified as operating leases. Both the asset and liability will initially be measured at the present value of the future minimum lease payments, with the asset being subject to adjustments such as initial direct costs. Consistent with current U.S. GAAP, the presentation of expenses and cash flows will depend primarily on the classification of the lease as either a finance or an operating lease. The new standard also requires additional quantitative and qualitative disclosures regarding the amount, timing and uncertainty of cash flows arising from leases in order to provide additional information about the nature of an organization’s leasing activities. An additional optional transition method to adopt the new lease standard at the adoption date, as compared to the beginning of the earliest period presented, and recognize a cumulative-effect adjustment to the beginning balance of retained earnings in the period of adoption is allowed. We adopted this guidance with the optional transition method effective December 31, 2018. See Leases footnote for the impact on the consolidated financial statements. In January 2016, the FASB issued ASU 2016-01 amending the current guidance for how entities measure certain equity investments, the accounting for financial liabilities under the fair value option, and the presentation and disclosure requirements relating to financial instruments. The new guidance requires entities to use fair value measurement for equity investments in unconsolidated entities, excluding equity method investments, and to recognize the changes in fair value in net income at the end of each reporting period. Under the new standard, for any financial liabilities in which the fair value option has been elected, the changes in fair value due to instrument-specific credit risk must be recognized separately in other comprehensive income. Presentation and disclosure requirements under the new guidance require public business entities to use the exit price when measuring the fair value of financial instruments measured at amortized cost. In addition, financial assets and liabilities must now be presented separately in the notes to the financial statements and grouped by measurement category and form of financial asset. This ASU was effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption was only permitted for the financial liability provision. We adopted this guidance effective January 1, 2018. See Investment in Persol Holdings footnote for the impact on the financial statements. In May 2014, the FASB issued new revenue recognition guidance under ASU 2014-09 that superseded the existing revenue recognition guidance under U.S. GAAP. The new standard focused on creating a single source of revenue guidance for revenue arising from contracts with customers for all industries. The objective of the new standard was for companies to recognize revenue when it transfers the promised goods or services to its customers at an amount that represents what the company expects to be entitled to in exchange for those goods or services. In July 2015, the FASB deferred the effective date by one year (ASU 2015-14). This ASU was effective for annual periods, and interim periods within those annual periods, beginning on or after December 15, 2017. Since the issuance of the original standard, the FASB issued several other subsequent updates including the following: 1) clarification of the implementation guidance on principal versus agent considerations (ASU 2016-08); 2) further guidance on identifying performance obligations in a contract as well as clarifications on the licensing implementation guidance (ASU 2016-10); 3) rescission of several SEC Staff Announcements that are codified in Topic 605 (ASU 2016-11); 4) additional guidance and practical expedients in response to identified implementation issues (ASU 2016-12); and 5) technical corrections and improvements (ASU 2016-20). We adopted this guidance with the modified retrospective approach effective January 1, 2018. See Revenue footnote for the impact on the financial statements. Not Yet Adopted In January 2020, the FASB issued ASU 2020-01 which clarifies the interaction of rules for equity securities, the equity method of accounting, and forward contracts and purchase options on certain types of securities. The guidance clarifies how to account for the transition into and out of the equity method of accounting when considering observable transactions under the measurement alternative. The ASU is effective for annual reporting periods beginning after December 15, 2020, including interim reporting periods within those annual periods, with early adoption permitted. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures. In December 2019, the FASB issued ASU 2019-12 simplifying various aspects related to the accounting for income taxes. The guidance removes exceptions to the general principles in Topic 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The ASU is effective for annual reporting periods beginning after December 15, 2020, including interim reporting periods within those annual periods, with early adoption permitted. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures. In August 2018, the FASB issued ASU 2018-15, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The ASU is effective for annual reporting periods beginning after December 15, 2019, including interim reporting periods within those annual periods, with early adoption permitted. Entities have the option to apply the guidance prospectively to all implementation costs incurred after the date of adoption or retrospectively. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures. In August 2018, the FASB issued ASU 2018-13 which eliminates, adds and modifies certain fair value measurement disclosures. The ASU is effective for annual reporting periods beginning after December 15, 2019, including interim reporting periods within those annual periods, with early adoption permitted. We do not expect the adoption of this standard to have a material impact to our consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, as clarified in ASU 2019-04, ASU 2019-05 and ASU 2019-11, amending how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. The guidance requires the application of a current expected credit loss model, which is a new impairment model based on expected losses. Under this model, an entity recognizes an allowance for expected credit losses based on historical experience, current conditions and forecasted information rather than the current methodology of delaying recognition of credit losses until it is probable a loss has been incurred. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019 with early adoption permitted for annual reporting periods beginning after December 15, 2018. We performed a broad assessment of all of our financial assets and other instruments not measured at fair value through net income and determined that trade accounts receivable is still the most significant financial asset subject to the current expected credit loss model. Under the new standard, we will continue to use an aging method to calculate the allowance for uncollectible accounts for the majority of our trade accounts receivables. Other financial assets measured at amortized cost will use the aging method or another acceptable method to measure credit losses. As we finalize our review of financial assets measured at amortized cost, accounting policies and business practices, we will continue to evaluate the impact of this guidance on our consolidated financial statements, disclosures and internal controls. Our preliminary assessments are subject to change. We expect to implement the standard with a cumulative effect adjustment in retained earnings effective December 30, 2019, which recognizes the cumulative effect of application recognized on that date. The cumulative effect adjustment is not expected to be material. Management has evaluated other recently issued accounting pronouncements and does not believe that any of these pronouncements will have a significant impact on our consolidated financial statements and related disclosures.