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Redeemable Convertible Preferred Units and Stockholders'/Members' Equity (Deficit) (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended |
--- | --- | --- | ---
Mar. 15, 2021 | Mar. 31, 2021 | Apr. 11, 2019
Class of Stock [Line Items] |  |  |
Redeemable convertible preferred units authorized (in shares) |  |  | 1,448,632,049
Common units authorized (in shares) |  |  | 264,166,544
Chief Executive Officer |  |  |
Class of Stock [Line Items] |  |  |
Conversion of redeemable convertible preferred units (in shares) | 132,859,550 |  |
Common Units |  |  |
Class of Stock [Line Items] |  |  |
Conversion of common units into Class A and Class B common stock (in shares) |  | 128,723,000 |
Common Units | PIUs |  |  |
Class of Stock [Line Items] |  |  |
Conversion of stock, conversion discount (in shares) | (75,862) |  |
Common class A |  |  |
Class of Stock [Line Items] |  |  |
Conversion of redeemable convertible preferred units (in shares) | 1,196,605,432 |  |
Common class A | IPO |  |  |
Class of Stock [Line Items] |  |  |
Shares converted (in shares) | 1,200,000 |  |
Sale of stock, number of shares issued in transaction (in shares) | 100,000,000 |  |
Sale of stock, price per share (in usd per share) | $ 35.00 |  |
Proceeds from issuance of Class A common stock upon initial public offering, net of underwriting discounts | $ 3,400 |  |
Payments for underwriting discounts | $ 69 |  |
Common class A | PIUs |  |  |
Class of Stock [Line Items] |  |  |
Shares converted (in shares) | 22,367,358 |  |
Common class A | Common Units |  |  |
Class of Stock [Line Items] |  |  |
Conversion of common units into Class A and Class B common stock (in shares) | 85,579,584 |  |
Common class A | Common Units | PIUs |  |  |
Class of Stock [Line Items] |  |  |
Shares converted (in shares) | 22,443,220 |  |
Common class B | IPO |  |  |
Class of Stock [Line Items] |  |  |
Shares converted (in shares) | (1,200,000) |  |
Common class B | PIUs | Chief Executive Officer |  |  |
Class of Stock [Line Items] |  |  |
Conversion of common units into Class A and Class B common stock (in shares) | 43,143,440 |  |

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