Investments (Tables)

6 Months Ended

Jun. 30, 2022

Investments [Abstract]

Marketable Securities

Our investments were as follows:

(in millions)	June 30, 2022		December 31, 2021
Short-term investments:
Equity investment security	$	26	$	26
Available-for-sale investment securities	448		310
Held-to-maturity investment securities	38		37
Time deposits	40		554
Total short-term investments	$	552	$	927

Long-term investments:
Other investments	$	68	$	66
Restricted time deposits(1)	375		397
Total long-term investments	$	443	$	463

(1)See Note 6.

Unrealized Gain (Loss) on Investments

The amortized cost and fair value of held-to-maturity investment securities were as follows:

	June 30, 2022				December 31, 2021
(in millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Short-term investments, maturing within one year:
Corporate debt securities	$	19	$	19	$	17	$	17
Commercial paper	19		19		20		20
Total held-to-maturity investments	$	38	$	38	$	37	$	37