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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Schedule of marketable securities

The aggregate carrying values of our short-term and long-term investment securities consisted of the following at September 30, 2021 and December 31, 2020 (in millions):

			September 30, 2021						December 31, 2020
Available-for-sale securities
Time deposits			$	1,060					$	1,130
Equity securities			36						—
Debt securities			5						7
Total available-for-sale securities			1,101						1,137
Total investment securities			$	1,101					$	1,137

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Tabular disclosure of investment securities.

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