Consolidated Statements of Income (Parenthetical) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 15, 2021 |
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| Income Statement [Abstract] | |||||
| Earnings allocated to participating share awards | $ 14 | $ 7 | $ 45 | $ 10 | |
| Dividends on preferred shares | 20 | 16 | 49 | 65 | |
| Equity adjustments in connection with redemption of Preferred Shares | $ 9 | $ 9 | $ 0 | $ 9 | $ 0 |