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Fair Value Measurements and Investments Debt Instrument Fair Value (Details) - USD ($) $ in Millions | Mar. 30, 2018 | Jun. 30, 2017
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Long-term debt, including current portion |  | $ 11,200 | $ 13,151
0.50% convertible senior notes due 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate (percentage) |  | 0.50% |
Debt, long-term and short-term, combined amount |  | $ 31 | 30
Long-term debt, fair value |  | 36 | 34
Variable interest rate Term Loan A maturing 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Debt, long-term and short-term, combined amount |  | 0 | 4,074
Long-term debt, fair value |  | 0 | 4,130
Variable interest rate Term Loan A-1 maturing 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Debt, long-term and short-term, combined amount |  | 5,013 | 0
Long-term debt, fair value |  | 5,047 | 0
Variable interest rate U.S. Term Loan B-2 maturing 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Debt, long-term and short-term, combined amount |  | 0 | 2,968
Long-term debt, fair value |  | 0 | 2,989
Variable interest rate U.S. Term Loan B-3 maturing 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Debt, long-term and short-term, combined amount |  | 2,452 | 0
Long-term debt, fair value |  | 2,470 | 0
Euro Term Loan B-2 |  |  |
Debt Instrument [Line Items] |  |  |
Debt, long-term and short-term, combined amount | [1] | 0 | 1,000
Long-term debt, fair value | [1] | $ 0 | 1,010
7.375% senior secured notes due 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate (percentage) |  | 7.375% |
Debt, long-term and short-term, combined amount |  | $ 0 | 1,835
Long-term debt, fair value |  | $ 0 | 2,062
1.50% convertible notes due 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate (percentage) |  | 1.50% |
Debt, long-term and short-term, combined amount |  | $ 924 | 0
Long-term debt, fair value |  | $ 1,192 | 0
10.50% senior unsecured notes due 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate (percentage) |  | 10.50% |
Debt, long-term and short-term, combined amount |  | $ 0 | 3,244
Long-term debt, fair value |  | $ 0 | 3,956
4.750% senior unsecured notes due 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate (percentage) |  | 4.75% |
Debt, long-term and short-term, combined amount |  | $ 2,280 | 0
Long-term debt, fair value |  | 2,301 | 0
Total |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, including current portion |  | 10,700 | 13,151
Long-term debt, fair value |  | $ 11,046 | $ 14,181
[1] | Euro Term Loan B-2 outstanding principal amount as of June 30, 2017 was based upon the Euro to U.S. dollar exchange rate as of that date.

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. + References No definition available. + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -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 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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