Basis of Presentation and Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended	6 Months Ended
		Jun. 24, 2016	Apr. 08, 2016	Jul. 03, 2016	Jul. 03, 2016	Jun. 28, 2015	Dec. 31, 2015
Business Acquisition [Line Items]
Cash payments for acquisition, net of cash acquired	[1]				$ 4,616	$ 679
Payments of merger termination costs			$ 150	$ 150	150
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs				93	93
Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs							$ (79)
Anacor [Member]
Business Acquisition [Line Items]
Business acquisition, per share in cash (in dollars per share)		$ 99.25
Payments for acquisitions, cash portion		$ 4,900
Cash payments for acquisition, net of cash acquired		4,500
Debt assumed		$ 698
Short-term borrowings, including current portion of long-term debt [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs				2	2
Short-term borrowings, including current portion of long-term debt [Member] | Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs							1
Long-term debt [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs				$ 91	$ 91
Long-term debt [Member] | Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs							79
Other current assets [Member] | Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs							(1)
Other noncurrent assets [Member] | Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs							$ (79)

[1] Amounts may not add due to rounding.