Acquisitions, Equity-Method Investment and Assets and Liabilities Held for Sale and Research and Development Arrangement - Research and Development Arrangement (Details) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended
		Apr. 30, 2016	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expenses	[1],[2]		$ 2,283,000,000	$ 2,008,000,000	$ 5,827,000,000	$ 5,549,000,000
NovaQuest Co-Investment Fund V, L.P. [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development arrangement, maximum funding amount		$ 200,000,000
Research and development arrangement, percentage of costs to be reimbursed		100.00%
Research and development arrangement, maximum funding amount, term		3 years 3 months
Research and development arrangement, contingent payments, maximum exposure		$ 267,000,000
Research and development arrangement, contingent payments, term		8 years
Charge in cost of sales for inventory build for eventual commercial use/expected future sale			127,000,000
Research and development expenses			$ 15,000,000

[1] Excludes amortization of intangible assets, except as disclosed in Note 9A. Identifiable Intangible Assets and Goodwill: Identifiable Intangible Assets.

[2] Amounts may not add due to rounding.