Investments (Tables)

6 Months Ended

Jun. 27, 2020

Investments and Cash [Abstract]

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	Jun 27, 2020								Dec 28, 2019
(In Millions)	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Corporate debt	$	3,911	$	94	$	—	$	4,005	$	2,914	$	44	$	—	$	2,958
Financial institution instruments	7,985		24		—		8,009		3,007		15		(1)		3,021
Government debt	2,491		12		—		2,503		560		4		—		564
Total available-for-sale debt investments	$	14,387	$	130	$	—	$	14,517	$	6,481	$	63	$	(1)	$	6,543

Investments Classified by Contractual Maturity Date [Table Text Block]

The fair value of available-for-sale debt investments, by contractual maturity, as of June 27, 2020, was as follows:

(In Millions)	Fair Value
Due in 1 year or less	$	7,763
Due in 1–2 years	1,525
Due in 2–5 years	1,359
Due after 5 years	—
Instruments not due at a single maturity date	3,870
Total	$	14,517

Investment [Table Text Block]

(In Millions)	Jun 27, 2020		Dec 28, 2019
Marketable equity securities	$	464	$	450
Non-marketable equity securities	3,419		3,480
Equity method investments	18		37
Total	$	3,901	$	3,967

Gain (Loss) on Securities [Table Text Block]

The components of gains (losses) on equity investments, net for each period were as follows:

	Three Months Ended				Six Months Ended
(In Millions)	Jun 27, 2020		Jun 29, 2019		Jun 27, 2020		Jun 29, 2019
Ongoing mark-to-market adjustments on marketable equity securities	$	165	$	(179)	$	62	$	74
Observable price adjustments on non-marketable equity securities	58		8		137		16
Impairment charges	(51)		(39)		(193)		(62)
Sale of equity investments and other¹	95		380		150		576
Total gains (losses) on equity investments, net	$	267	$	170	$	156	$	604

¹ Sale of equity investments and other includes realized gains (losses) on sales of non-marketable equity investments, our share of equity method investee gains (losses) and distributions, and initial fair value adjustments recorded upon a security becoming marketable.

Gains and losses for our marketable and non-marketable equity securities during the period were as follows:

	Three Months Ended				Six Months Ended
(In Millions)	Jun 27, 2020		Jun 29, 2019		Jun 27, 2020		Jun 29, 2019
Net gains (losses) recognized during the period on equity securities	$	223	$	(178)	$	83	$	84
Less: Net (gains) losses recognized during the period on equity securities sold during the period	(55)		(33)		(58)		(258)
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date	$	168	$	(211)	$	25	$	(174)