Equity Investments - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Jul. 07, 2020 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Equity Securities without Readily Determinable Fair Value [Line Items] | ||||
| Purchases of equity investments | $ 47 | $ 6,361 | $ 61 | |
| Jio Platforms Limited | ||||
| Equity Securities without Readily Determinable Fair Value [Line Items] | ||||
| Purchases of equity investments | $ 5,820 | |||