Intangible Assets, Goodwill, and Acquisitions - Narrative (Details) - USD ($)						1 Months Ended	2 Months Ended		3 Months Ended		12 Months Ended
	Feb. 03, 2020	Jan. 02, 2020	Dec. 18, 2019	Nov. 01, 2018	May 14, 2018	Mar. 02, 2020	Mar. 02, 2020	Dec. 02, 2019	Dec. 29, 2019	Jun. 30, 2019	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Goodwill [Line Items]
Impairment charge													$ 18,000,000
Goodwill impairment										$ 0
Goodwill, acquired												$ 60,000,000
Continuation advances paid and fair value derivative asset											$ 8,000,000	$ 0	0
In Process Research and Development
Goodwill [Line Items]
Impairment charge													$ 5,000,000
Edico Genome
Goodwill [Line Items]
Business acquisition total consideration					$ 100,000,000
Goodwill, acquired					56,000,000
Edico Genome | Developed Technology
Goodwill [Line Items]
Value of intangible assets acquired					$ 45,000,000
Weighted-average useful lives (in years)					10 years
Edico Genome | Trade Name
Goodwill [Line Items]
Value of intangible assets acquired					$ 1,000,000
Weighted-average useful lives (in years)					3 years
PacBio
Goodwill [Line Items]
Cash payments to PacBio			$ 34,000,000	$ 1,200,000,000				$ 6,000,000	$ 18,000,000
Share price (in dollars per share)				$ 8.00
Continuation advances									$ 10,000,000		10,000,000
PacBio | Subsequent Event
Goodwill [Line Items]
Cash payments to PacBio	$ 22,000,000	$ 6,000,000				$ 6,000,000
PacBio a termination fee		98,000,000
PacBio will pay cash termination fee		$ 52,000,000
Business acquisition termination term		2 years
Equity or debt financing to be raised		$ 100,000,000
PacBio | Subsequent Event | Forecast
Goodwill [Line Items]
Cash payments to PacBio							$ 34,000,000
PacBio | Selling, General and Administrative Expenses
Goodwill [Line Items]
Continuation advances paid and fair value derivative asset											$ 8,000,000