Shareholders' Equity - Preferred Stock Summary (Details) - USD ($)
$ / shares in Units, $ in Millions |
|
12 Months Ended |
|
Oct. 29, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
3,931,440
|
3,887,440
|
| Issuance costs and certain adjustments |
|
$ (348)
|
|
| Total |
|
$ 24,510
|
|
| Series B Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
7,110
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 100
|
|
| Carrying Value |
|
$ 1
|
|
| Per Annum Dividend Rate |
|
7.00%
|
|
| Dividend per Share (in dollars per share) |
|
$ 7
|
|
| Annual Dividend |
|
$ 0
|
|
| Series E Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
12,691
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 317
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.02
|
|
| Annual Dividend |
|
$ 13
|
|
| Minimum interest rate per annum |
|
4.00%
|
|
| Ownership interest in a share of preferred stock |
|
0.10%
|
|
| Series F Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
1,409
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 100,000
|
|
| Carrying Value |
|
$ 141
|
|
| Dividend per Share (in dollars per share) |
|
$ 4,066.67
|
|
| Annual Dividend |
|
$ 6
|
|
| Minimum interest rate per annum |
|
4.00%
|
|
| Series G Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
4,926
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 100,000
|
|
| Carrying Value |
|
$ 493
|
|
| Dividend per Share (in dollars per share) |
|
$ 4,066.67
|
|
| Annual Dividend |
|
$ 20
|
|
| Minimum interest rate per annum |
|
4.00%
|
|
| Series L Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
3,080,182
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 1,000
|
|
| Carrying Value |
|
$ 3,080
|
|
| Per Annum Dividend Rate |
|
7.25%
|
|
| Dividend per Share (in dollars per share) |
|
$ 72.50
|
|
| Annual Dividend |
|
$ 223
|
|
| Series T Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
354
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 100,000
|
|
| Carrying Value |
|
$ 35
|
|
| Per Annum Dividend Rate |
|
6.00%
|
|
| Dividend per Share (in dollars per share) |
|
$ 6,000.00
|
|
| Annual Dividend |
|
$ 2
|
|
| Series U Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
40,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,000
|
|
| Per Annum Dividend Rate |
|
5.20%
|
|
| Dividend per Share (in dollars per share) |
|
$ 52.00
|
|
| Annual Dividend |
|
$ 52
|
|
| Ownership interest in a share of preferred stock |
|
4.00%
|
|
| Series X Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
80,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 2,000
|
|
| Per Annum Dividend Rate |
|
6.25%
|
|
| Dividend per Share (in dollars per share) |
|
$ 62.50
|
|
| Annual Dividend |
|
$ 125
|
|
| Ownership interest in a share of preferred stock |
|
4.00%
|
|
| Series Z Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
56,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,400
|
|
| Per Annum Dividend Rate |
|
6.50%
|
|
| Dividend per Share (in dollars per share) |
|
$ 65.00
|
|
| Annual Dividend |
|
$ 91
|
|
| Ownership interest in a share of preferred stock |
|
4.00%
|
|
| Series AA Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
76,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,900
|
|
| Per Annum Dividend Rate |
|
6.10%
|
|
| Dividend per Share (in dollars per share) |
|
$ 61.00
|
|
| Annual Dividend |
|
$ 116
|
|
| Ownership interest in a share of preferred stock |
|
4.00%
|
|
| Series CC Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
44,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,100
|
|
| Per Annum Dividend Rate |
|
6.20%
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.55
|
|
| Annual Dividend |
|
$ 68
|
|
| Ownership interest in a share of preferred stock |
|
0.10%
|
|
| Series DD Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
40,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,000
|
|
| Per Annum Dividend Rate |
|
6.30%
|
|
| Dividend per Share (in dollars per share) |
|
$ 63.00
|
|
| Annual Dividend |
|
$ 63
|
|
| Ownership interest in a share of preferred stock |
|
4.00%
|
|
| Series EE Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
36,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 900
|
|
| Per Annum Dividend Rate |
|
6.00%
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.50
|
|
| Annual Dividend |
|
$ 54
|
|
| Ownership interest in a share of preferred stock |
|
0.10%
|
|
| Series FF Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
94,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 2,350
|
|
| Per Annum Dividend Rate |
|
5.875%
|
|
| Dividend per Share (in dollars per share) |
|
$ 58.75
|
|
| Annual Dividend |
|
$ 138
|
|
| Ownership interest in a share of preferred stock |
|
4.00%
|
|
| Series GG Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
54,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,350
|
|
| Per Annum Dividend Rate |
|
6.00%
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.50
|
|
| Annual Dividend |
|
$ 81
|
|
| Ownership interest in a share of preferred stock |
|
0.10%
|
|
| Series HH Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
34,160
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 854
|
|
| Per Annum Dividend Rate |
|
5.875%
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.47
|
|
| Annual Dividend |
|
$ 50
|
|
| Ownership interest in a share of preferred stock |
|
0.10%
|
|
| Series JJ Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
40,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,000
|
|
| Per Annum Dividend Rate |
|
5.125%
|
|
| Dividend per Share (in dollars per share) |
|
$ 51.25
|
|
| Annual Dividend |
|
$ 51
|
|
| Ownership interest in a share of preferred stock |
|
4.00%
|
|
| Series KK Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
55,900
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,398
|
|
| Per Annum Dividend Rate |
|
5.375%
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.34
|
|
| Annual Dividend |
|
$ 75
|
|
| Ownership interest in a share of preferred stock |
|
0.10%
|
|
| Series LL Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
52,400
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,310
|
|
| Per Annum Dividend Rate |
|
5.00%
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.25
|
|
| Annual Dividend |
|
$ 66
|
|
| Ownership interest in a share of preferred stock |
|
0.10%
|
|
| Series MM Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
44,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,100
|
|
| Per Annum Dividend Rate |
|
4.30%
|
|
| Dividend per Share (in dollars per share) |
|
$ 43.48
|
|
| Annual Dividend |
|
$ 48
|
|
| Ownership interest in a share of preferred stock |
|
4.00%
|
|
| Series NN Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
44,000
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 25,000
|
|
| Carrying Value |
|
$ 1,100
|
|
| Per Annum Dividend Rate |
4.375%
|
4.375%
|
|
| Dividend per Share (in dollars per share) |
|
$ 0.29
|
|
| Annual Dividend |
|
$ 13
|
|
| Ownership interest in a share of preferred stock |
|
0.10%
|
|
| Series 1 Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
3,275
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 30,000
|
|
| Carrying Value |
|
$ 98
|
|
| Dividend per Share (in dollars per share) |
|
$ 0.75
|
|
| Annual Dividend |
|
$ 3
|
|
| Minimum interest rate per annum |
|
3.00%
|
|
| Ownership interest in a share of preferred stock |
|
0.08%
|
|
| Series 2 Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
9,967
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 30,000
|
|
| Carrying Value |
|
$ 299
|
|
| Dividend per Share (in dollars per share) |
|
$ 0.76
|
|
| Annual Dividend |
|
$ 10
|
|
| Minimum interest rate per annum |
|
3.00%
|
|
| Ownership interest in a share of preferred stock |
|
0.08%
|
|
| Series 4 Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
7,010
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 30,000
|
|
| Carrying Value |
|
$ 210
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.02
|
|
| Annual Dividend |
|
$ 9
|
|
| Minimum interest rate per annum |
|
4.00%
|
|
| Ownership interest in a share of preferred stock |
|
0.08%
|
|
| Series 5 Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Total Shares Outstanding (in shares) |
|
14,056
|
|
| Liquidation Preference per Share (in dollars per share) |
|
$ 30,000
|
|
| Carrying Value |
|
$ 422
|
|
| Dividend per Share (in dollars per share) |
|
$ 1.02
|
|
| Annual Dividend |
|
$ 17
|
|
| Minimum interest rate per annum |
|
4.00%
|
|
| Ownership interest in a share of preferred stock |
|
0.08%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series E Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
0.35%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series F Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
0.40%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series G Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
0.40%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series U Preferred Stock | June 1, 2023 |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
3.135%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series X Preferred Stock | September 5, 2024 |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
3.705%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series Z Preferred Stock | October 23, 2024 |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
4.174%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series AA Preferred Stock | March 17, 2025 |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
3.898%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series DD Preferred Stock | March 10, 2026 |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
4.553%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series FF Preferred Stock | March 25, 2028 |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
2.931%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series JJ Preferred Stock | June 20, 2024 |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
3.292%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series 1 Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
0.75%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series 2 Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
0.65%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series 4 Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
0.75%
|
|
| 3-Month London Interbank Offered Rate (LIBOR) | Series 5 Preferred Stock |
|
|
|
| Class of Stock [Line Items] |
|
|
|
| Minimum interest rate per annum |
|
0.50%
|
|