INVESTMENTS (Tables)
|
12 Months Ended |
Dec. 31, 2020 |
|---|
| Investments Disclosure [Abstract] |
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| 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 consolidated balance sheets (in millions):
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Fair Value with Changes Recognized in Income |
Measurement Alternative — No Readily Determinable Fair Value |
| December 31, 2020 |
|
|
| Marketable securities |
$ |
330
|
|
$ |
—
|
|
| Other investments |
762
|
|
50
|
|
| Other assets |
1,282
|
|
—
|
|
| Total equity securities |
$ |
2,374
|
|
$ |
50
|
|
| December 31, 2019 |
|
|
| Marketable securities |
$ |
329 |
|
$ |
— |
|
| Other investments |
772 |
|
82 |
|
| Other assets |
1,118 |
|
— |
|
| Total equity securities |
$ |
2,219 |
|
$ |
82 |
|
|
| Unrealized Gain (Loss) on Investments [Table Text Block] |
The calculation of net unrealized gains and losses recognized during the year related to equity securities still held at the end of the year is as follows (in millions):
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| Year Ended December 31, |
2020 |
2019 |
| Net gains (losses) recognized during the year related to equity securities |
$ |
146
|
|
$ |
218 |
|
Less: Net gains (losses) recognized during the year related to equity securities sold during the
year |
(22) |
|
27 |
|
Net unrealized gains (losses) recognized during the year related to equity securities still held
at the end of the year |
$ |
168
|
|
$ |
191 |
|
|
| Schedule of debt securities [Table Text Block] |
Our debt securities consisted of the following (in millions):
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Gross Unrealized |
Estimated Fair Value |
|
Cost |
Gains |
Losses |
| December 31, 2020 |
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|
|
|
Trading securities |
$ |
36
|
|
$ |
2
|
|
$ |
—
|
|
$ |
38
|
|
Available-for-sale securities |
2,227
|
|
51
|
|
(13) |
|
2,265
|
|
Total debt securities |
$ |
2,263
|
|
$ |
53
|
|
$ |
(13) |
|
$ |
2,303
|
|
| December 31, 2019 |
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|
|
|
Trading securities |
$ |
46 |
|
$ |
1 |
|
$ |
— |
|
$ |
47 |
|
Available-for-sale securities |
3,172 |
|
113 |
|
(4) |
|
3,281 |
|
Total debt securities |
$ |
3,218 |
|
$ |
114 |
|
$ |
(4) |
|
$ |
3,328 |
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| 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 consolidated balance sheets (in millions):
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December 31, 2020 |
|
December 31, 2019 |
|
Trading Securities |
Available-for-Sale Securities |
|
Trading Securities |
Available-for-Sale Securities |
| Cash and cash equivalents |
$ |
—
|
|
$ |
—
|
|
|
$ |
— |
|
$ |
123 |
|
| Marketable securities |
38
|
|
1,980
|
|
|
47 |
|
2,852 |
|
| Other assets |
—
|
|
285
|
|
|
— |
|
306 |
|
| Total debt securities |
$ |
38
|
|
$ |
2,265
|
|
|
$ |
47 |
|
$ |
3,281 |
|
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| Investments Classified by Contractual Maturity Date [Table Text Block] |
The contractual maturities of these available-for-sale debt securities as of December 31, 2020 were as follows (in millions):
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Cost |
Estimated
Fair Value |
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| Within 1 year |
$ |
701 |
|
$ |
720 |
|
|
|
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| After 1 year through 5 years |
1,236 |
|
1,237 |
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|
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| After 5 years through 10 years |
90 |
|
103 |
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|
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| After 10 years |
200 |
|
205 |
|
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| Total |
$ |
2,227 |
|
$ |
2,265 |
|
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|
|
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| 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):
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| Year Ended December 31, |
2020 |
2019 |
2018 |
| Gross gains |
$ |
20
|
|
$ |
39 |
|
$ |
22 |
|
| Gross losses |
(13) |
|
(8) |
|
(27) |
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| Proceeds |
1,559
|
|
3,956 |
|
13,710 |
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