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Fair Value Measurements and Investments - Debt Instrument Fair Value (Details) - USD ($) $ in Millions	Jul. 02, 2021	Oct. 31, 2020	Jul. 03, 2020	Feb. 28, 2018
0.50% convertible senior notes due 2020
Debt Instrument [Line Items]
Debt instrument, interest rate (percentage)	0.50%		0.50%
0.50% convertible senior notes due 2020 | Convertible Debt [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate (percentage)		0.50%
1.50% convertible notes due 2024 | Convertible Debt [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate (percentage)	1.50%		1.50%	1.50%
4.75% senior unsecured notes due 2026
Debt Instrument [Line Items]
Debt instrument, interest rate (percentage)	4.75%		4.75%
Reported Value Measurement
Debt Instrument [Line Items]
Long-term debt	$ 8,725		$ 9,575
Reported Value Measurement | 0.50% convertible senior notes due 2020
Debt Instrument [Line Items]
Long-term debt	0		34
Reported Value Measurement | Variable interest rate Term Loan A-1 maturing 2023
Debt Instrument [Line Items]
Long-term debt	4,327		4,576
Reported Value Measurement | Variable interest rate Term Loan B-4 maturing 2023
Debt Instrument [Line Items]
Long-term debt	1,093		1,692
Reported Value Measurement | 1.50% convertible notes due 2024
Debt Instrument [Line Items]
Long-term debt	1,017		987
Reported Value Measurement | 4.75% senior unsecured notes due 2026
Debt Instrument [Line Items]
Long-term debt	2,288		2,286
Level 2 | Estimate of Fair Value Measurement
Debt Instrument [Line Items]
Long-term debt	9,169		9,624
Level 2 | Estimate of Fair Value Measurement | 0.50% convertible senior notes due 2020
Debt Instrument [Line Items]
Long-term debt	0		30
Level 2 | Estimate of Fair Value Measurement | Variable interest rate Term Loan A-1 maturing 2023
Debt Instrument [Line Items]
Long-term debt	4,346		4,474
Level 2 | Estimate of Fair Value Measurement | Variable interest rate Term Loan B-4 maturing 2023
Debt Instrument [Line Items]
Long-term debt	1,094		1,656
Level 2 | Estimate of Fair Value Measurement | 1.50% convertible notes due 2024
Debt Instrument [Line Items]
Long-term debt	1,173		1,036
Level 2 | Estimate of Fair Value Measurement | 4.75% senior unsecured notes due 2026
Debt Instrument [Line Items]
Long-term debt	$ 2,556		$ 2,428

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: 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=120391452&loc=d3e13212-122682

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X

- 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.

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X

- 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.

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