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v3.20.1

Strategic Investments (Tables) | 3 Months Ended
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Mar. 31, 2020
Investments [Abstract] |
Investment [Table Text Block] | The aggregate carrying amount of our strategic investments was comprised of the following:
| As of
(in millions) | March 31, 2020 |  | December 31, 2019
Equity method investments | $ | 253 |  |  | $ | 264 |
Measurement alternative investments (1) | 181 |  |  | 171 |
Publicly-held equity securities (2) | — |  |  | 1 |
Notes receivable | 2 |  |  | 23 |
| $ | 437 |  |  | $ | 458 |
(1) | Measurement alternative investments are privately-held equity securities without readily determinable fair values that are measured at cost minus impairment, if any, adjusted to fair value for any observable price changes in orderly transactions for the identical or a similar investment of the same issuer.
(2) Publicly-held equity securities are measured at fair value with changes in fair value recognized currently in Other, net on our accompanying unaudited condensed consolidated statements of operations.

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