Redeemable Convertible Preferred Stock, Common Stock, and Equity (Deficit) - Redeemable Convertible Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions |
May 31, 2019 |
Dec. 31, 2019 |
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
903,607,000
|
0
|
| Preferred stock, shares authorized (in shares) |
946,246,000
|
10,000,000
|
| Preferred stock, shares issued (in shares) |
903,607,000
|
0
|
| Aggregate Liquidation Preference |
$ 14,297
|
|
| Carrying Value, Net of Issuance Costs |
$ 14,177
|
|
| Seed |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
152,591,000
|
|
| Preferred stock, shares authorized (in shares) |
174,030,000
|
|
| Preferred stock, shares issued (in shares) |
152,591,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 0.00906
|
|
| Aggregate Liquidation Preference |
$ 1
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 0.00073
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 0.00906
|
|
| Carrying Value, Net of Issuance Costs |
$ 1
|
|
| A |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
150,427,000
|
|
| Preferred stock, shares authorized (in shares) |
152,053,000
|
|
| Preferred stock, shares issued (in shares) |
150,427,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 0.09248
|
|
| Aggregate Liquidation Preference |
$ 14
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 0.00584
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 0.07303
|
|
| Carrying Value, Net of Issuance Costs |
$ 11
|
|
| B |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
122,721,000
|
|
| Preferred stock, shares authorized (in shares) |
123,646,000
|
|
| Preferred stock, shares issued (in shares) |
122,721,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 0.35448
|
|
| Aggregate Liquidation Preference |
$ 44
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 0.02836
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 0.35448
|
|
| Carrying Value, Net of Issuance Costs |
$ 43
|
|
| C-1 |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
76,551,000
|
|
| Preferred stock, shares authorized (in shares) |
76,551,000
|
|
| Preferred stock, shares issued (in shares) |
76,551,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 4.45438
|
|
| Aggregate Liquidation Preference |
$ 341
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 0.28508
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 3.56350
|
|
| Carrying Value, Net of Issuance Costs |
$ 273
|
|
| C-2 |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
31,004,000
|
|
| Preferred stock, shares authorized (in shares) |
31,004,000
|
|
| Preferred stock, shares issued (in shares) |
31,004,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 3.56350
|
|
| Aggregate Liquidation Preference |
$ 110
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 0.22806
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 2.85080
|
|
| Carrying Value, Net of Issuance Costs |
$ 62
|
|
| C-3 |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
842,000
|
|
| Preferred stock, shares authorized (in shares) |
842,000
|
|
| Preferred stock, shares issued (in shares) |
842,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 4.45438
|
|
| Aggregate Liquidation Preference |
$ 4
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 0.28508
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 3.56350
|
|
| Carrying Value, Net of Issuance Costs |
$ 3
|
|
| D |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
82,443,000
|
|
| Preferred stock, shares authorized (in shares) |
87,193,000
|
|
| Preferred stock, shares issued (in shares) |
82,443,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 15.51305
|
|
| Aggregate Liquidation Preference |
$ 1,279
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 1.24105
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 15.51305
|
|
| Carrying Value, Net of Issuance Costs |
$ 1,291
|
|
| E |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
84,140,000
|
|
| Preferred stock, shares authorized (in shares) |
84,504,000
|
|
| Preferred stock, shares issued (in shares) |
84,140,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 33.31758
|
|
| Aggregate Liquidation Preference |
$ 2,803
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 2.66540
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 33.31758
|
|
| Carrying Value, Net of Issuance Costs |
$ 2,793
|
|
| F |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
21,262,000
|
|
| Preferred stock, shares authorized (in shares) |
25,228,000
|
|
| Preferred stock, shares issued (in shares) |
21,262,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 39.63858
|
|
| Aggregate Liquidation Preference |
$ 843
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 3.17109
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 39.63858
|
|
| Carrying Value, Net of Issuance Costs |
$ 842
|
|
| G |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
140,619,000
|
|
| Preferred stock, shares authorized (in shares) |
150,188,000
|
|
| Preferred stock, shares issued (in shares) |
140,619,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 48.77223
|
|
| Aggregate Liquidation Preference |
$ 6,858
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 3.90178
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 48.77223
|
|
| Carrying Value, Net of Issuance Costs |
$ 6,858
|
|
| G-1 |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
35,881,000
|
|
| Preferred stock, shares authorized (in shares) |
35,881,000
|
|
| Preferred stock, shares issued (in shares) |
35,881,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 48.77223
|
|
| Aggregate Liquidation Preference |
$ 1,750
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 3.90178
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 48.77223
|
|
| Carrying Value, Net of Issuance Costs |
$ 1,750
|
|
| G-2 |
|
|
| Class of Stock [Line Items] |
|
|
| Preferred stock, shares outstanding (in shares) |
5,126,000
|
|
| Preferred stock, shares authorized (in shares) |
5,126,000
|
|
| Preferred stock, shares issued (in shares) |
5,126,000
|
|
| Per Share Liquidation Preference (in shares) |
$ 48.77223
|
|
| Aggregate Liquidation Preference |
$ 250
|
|
| Per Share Dividend Per Annum (in dollars per share) |
$ 3.90178
|
|
| Per Share Initial Conversion Price (in dollars per share) |
$ 48.77223
|
|
| Carrying Value, Net of Issuance Costs |
$ 250
|
|