Basis of Presentation and Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions					3 Months Ended	9 Months Ended
		Sep. 28, 2016	Jun. 24, 2016	Apr. 08, 2016	Apr. 02, 2017	Oct. 02, 2016	Sep. 27, 2015	Oct. 06, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Cash payments for acquisition, net of cash acquired	[1]					$ 17,679	$ 16,322
Payments of merger termination costs				$ 150		150
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs						89
Held-for-sale [Member] | Subsequent Event [Member] | HIS [Member] | ICU Medical [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration transferred								$ 1,000
Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs									$ (79)
Forecast [Member] | Held-for-sale [Member] | HIS [Member] | ICU Medical [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Minimum share transfer restriction term					18 months
Medivation [Member]
Business Acquisition [Line Items]
Business acquisition, per share in cash (in dollars per share)		$ 81.50
Payments for acquisitions, cash portion		$ 14,300
Cash payments for acquisition, net of cash acquired		$ 13,900
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						1
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						$ 88
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.