Segment Information (Tables)

3 Months Ended

Apr. 03, 2022

Segment Reporting [Abstract]

Schedule of Operating Performance and Assets by Segment

In millions	Q1 2022		Q1 2021
Revenue:
Core Illumina	$	1,221	$	1,093
GRAIL	10		—
Eliminations	(8)		—
Consolidated revenue	$	1,223	$	1,093
Income (loss) from operations:
Core Illumina	$	362	$	193
GRAIL	(172)		—
Eliminations	(6)		—
Consolidated income from operations	$	184	$	193

Total other expense, net relates primarily to Core Illumina, and we do not allocate income taxes to our segments.

In millions	April 3, 2022		January 2, 2022
Total assets:
Core Illumina	$	5,682	$	5,571
GRAIL	9,600		9,649
Eliminations	(8)		(3)
Consolidated total assets	$	15,274	$	15,217