Investments (Tables)

6 Months Ended

Jun. 26, 2020

Investments [Abstracts]

Unrealized Gain (Loss) on Investments

The calculation of net unrealized gains and losses recognized during the period related to equity securities still held at the end of the period is as follows (in millions):

	Three Months Ended
	June 26, 2020		June 28, 2019
Net gains (losses) recognized during the period related to equity securities	$	242	$	(13)
Less: Net gains (losses) recognized during the period related to equity securities sold during the period	13		1
Net unrealized gains (losses) recognized during the period related to equity securities still held at the end of the period	$	229	$	(14)

	Six Months Ended
	June 26, 2020		June 28, 2019
Net gains (losses) recognized during the period related to equity securities	$	(154)	$	134
Less: Net gains (losses) recognized during the period related to equity securities sold during the period	(31)		13
Net unrealized gains (losses) recognized during the period related to equity securities still held at the end of the period	$	(123)	$	121

Carrying value of equity securities by balance sheet location [Table Text Block]

The carrying values of our equity securities were included in the following line items in our condensed consolidated balance sheets (in millions):

	Fair Value with Changes Recognized in Income		Measurement Alternative — No Readily Determinable Fair Value
June 26, 2020
Marketable securities	$	276	$	—
Other investments	699		47
Other assets	998		—
Total equity securities	$	1,973	$	47
December 31, 2019
Marketable securities	$	329	$	—
Other investments	772		82
Other assets	1,118		—
Total equity securities	$	2,219	$	82

Schedule of debt securities [Table Text Block]

Our debt securities consisted of the following (in millions):

			Gross Unrealized				Estimated Fair Value
	Cost		Gains		Losses
June 26, 2020
Trading securities	$	34	$	1	$	(1)	$	34
Available-for-sale securities	2,176		79		(2)		2,253
Total debt securities	$	2,210	$	80	$	(3)	$	2,287
December 31, 2019
Trading securities	$	46	$	1	$	—	$	47
Available-for-sale securities	3,172		113		(4)		3,281
Total debt securities	$	3,218	$	114	$	(4)	$	3,328

Fair value of debt securities by balance sheet location [Table Text Block]

The carrying values of our debt securities were included in the following line items in our condensed consolidated balance sheets (in millions):

	June 26, 2020				December 31, 2019
	Trading Securities		Available-for-Sale Securities		Trading Securities		Available-for-Sale Securities
Cash and cash equivalents	$	—	$	59	$	—	$	123
Marketable securities	34		1,918		47		2,852
Other assets	—		276		—		306
Total debt securities	$	34	$	2,253	$	47	$	3,281

Realized Gain (Loss) on Investments [Table Text Block]

The sale and/or maturity of available-for-sale debt securities resulted in the following realized activity (in millions):

	Three Months Ended				Six Months Ended
	June 26, 2020		June 28, 2019		June 26, 2020		June 28, 2019
Gross gains	$	9	$	23	$	17	$	28
Gross losses	(6)		(1)		(8)		(4)
Proceeds	280		1,068		1,186		1,790

Contractual maturity amounts of the investment securities

The contractual maturities of these available-for-sale debt securities as of June 26, 2020 were as follows (in millions):

	Cost		Estimated Fair Value
Within 1 year	$	1,242	$	1,243
After 1 year through 5 years	713		759
After 5 years through 10 years	50		63
After 10 years	171		188
Total	$	2,176	$	2,253