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Short-term and Long-term Debt - Narrative (Detail) |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
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Mar. 22, 2018 USD ($) | Jun. 29, 2019 USD ($) revision | Jun. 30, 2018 USD ($) | Jun. 29, 2019 USD ($) revision | Jun. 30, 2018 USD ($) | Dec. 29, 2018 USD ($) | Feb. 27, 2018 USD ($) | Feb. 20, 2018 USD ($)
Schedule Of Debt Instruments [Line Items] |  |  |  |  |  |  |  |
Notes payable |  | $ 168,200,000 |  | $ 168,200,000 |  | $ 186,300,000 |  |
Commercial paper outstanding |  | 154,600,000 |  | 154,600,000 |  | 177,100,000 |  |
Other notes payable |  | 13,600,000 |  | 13,600,000 |  | 9,200,000 |  |
Loss on early extinguishment of debt |  | 0 | $ 0 | 0 | $ 7,800,000 |  |  |
Proceeds from sale of unsecured long-term notes |  |  |  | $ 0 | $ 395,400,000 |  |  |
Five-year Multi-Currency Revolving Credit Facility |  |  |  |  |  |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |  |  |  |  |  |
Debt maturity term |  |  |  | 5 years |  |  |  |
Revolving credit facility, amount available |  | 700,000,000 |  | $ 700,000,000 |  |  |  |
Revolving credit facility, outstanding amount |  | $ 0 |  | $ 0 |  |  |  |
Number of allowed revisions to debt ratios | revision |  | 2 |  | 2 |  |  |  |
Actual debt-to-capital ratio |  | 0.21 |  | 0.21 |  |  |  |
Actual debt-to-income ratio |  | 0.95 |  | 0.95 |  |  |  |
Five-year Multi-Currency Revolving Credit Facility | Maximum |  |  |  |  |  |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |  |  |  |  |  |
Maximum limit of required debt-to-capital ratio |  | 0.60 |  | 0.60 |  |  |  |
Maximum limit of required debt-to-income ratio |  | 3.50 |  | 3.50 |  |  |  |
Five-year Multi-Currency Revolving Credit Facility | Maximum | Material Acquisition |  |  |  |  |  |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |  |  |  |  |  |
Maximum limit of required debt-to-capital ratio |  | 0.65 |  | 0.65 |  |  |  |
Maximum limit of required debt-to-income ratio |  | 3.75 |  | 3.75 |  |  |  |
Unsecured Notes Due 2019 - 6.70% |  |  |  |  |  |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  | $ 200,000,000
Unsecured notes, interest rate |  |  |  |  |  |  |  | 6.70%
2019 Notes |  |  |  |  |  |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |  |  |  |  |  |
Debt instrument, repurchase amount |  |  |  |  |  |  | $ 26,100,000 |
Payment for debt extinguishment | $ 209,100,000 |  |  |  |  |  |  |
Accrued interest | 1,500,000 |  |  |  |  |  |  |
Loss on early extinguishment of debt | $ 7,800,000 |  |  |  |  |  |  |
4.10% Unsecured Notes Due 2048 |  |  |  |  |  |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  | $ 400,000,000
Unsecured notes, interest rate |  |  |  |  |  |  |  | 4.10%
Proceeds from sale of unsecured long-term notes |  |  |  |  |  | 395,400,000 |  |
Transaction costs |  |  |  |  |  | $ 3,500,000 |  |

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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(2)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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