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Available-for-sale Debt Securities and Equity Securities - Summary of Classification of Equity Securities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable equity securities	$ 3,831	$ 3,661
Prepaid and other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable equity securities	473	885
Other long-term assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable equity securities	943	1,197
Equity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	$ 5,248	$ 5,743

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