Shareholders' Equity - Preferred Stock (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Apr. 25, 2021 |
Jun. 30, 2021 |
Mar. 31, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
| Class of Stock [Line Items] | ||||||
| Preferred stock dividends | $ 260 | $ 490 | $ 249 | $ 750 | $ 718 | |
| Series EE Preferred Stock | ||||||
| Class of Stock [Line Items] | ||||||
| Redeemed preferred stock | $ 900 | |||||
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash outflow for reacquisition of callable preferred stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|