Investments (Equity Investments Without Readily Determinable Fair Values Assessed Under the Measurement Alternative) (Details) - USD ($) $ in Millions |
Jun. 30, 2022 |
Apr. 08, 2022 |
Dec. 31, 2021 |
---|---|---|---|
Other Investment Not Readily Marketable [Line Items] | |||
Equity investments without readily determinable fair value | $ 637 | $ 496 | |
Equity securities without readily determinable fair value, cumulative upward adjustment | 9 | ||
Equity securities without readily determinable fair value, cumulative impairments | $ 88 | ||
WarnerMedia | |||
Other Investment Not Readily Marketable [Line Items] | |||
Equity investments without readily determinable fair value | $ 156 |