Segment Information (Tables)

9 Months Ended

Oct. 02, 2022

Segment Reporting [Abstract]

Schedule of Operating Performance and Assets by Segment

In millions	Q3 2022		Q3 2021		YTD 2022		YTD 2021
Revenue:
Core Illumina	$	1,110	$	1,106	$	3,487	$	3,325
GRAIL	10		2		32		2
Eliminations	(5)		—		(18)		—
Consolidated revenue	$	1,115	$	1,108	$	3,501	$	3,327
Income (loss) from operations:
Core Illumina	$	445	$	205	$	411	$	586
GRAIL	(4,101)		(750)		(4,460)		(750)
Eliminations	(1)		—		(3)		—
Consolidated loss from operations	$	(3,657)	$	(545)	$	(4,052)	$	(164)

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

In millions	October 2, 2022		January 2, 2022
Total assets:
Core Illumina	$	5,626	$	5,571
GRAIL	5,637		9,649
Eliminations	(7)		(3)
Consolidated total assets	$	11,256	$	15,217