Stockholders Equity - Narrative (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
1 Months Ended | 3 Months Ended | |
|---|---|---|---|
Nov. 01, 2022 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Stockholders Equity [Line Items] | |||
| Stock repurchase program, authorized amount | $ 4,000.0 | ||
| Shares repurchased | $ 250.0 | $ 250.0 | |
| Class A and Class B Common Stock | |||
| Stockholders Equity [Line Items] | |||
| Shares repurchased | 8.0 | ||
| Shares repurchased | $ 250.0 | ||
| Remaining buyback authorization amount | $ 1,150.0 | ||
| Class A and Class B Common Stock | Subsequent Event | |||
| Stockholders Equity [Line Items] | |||
| Shares repurchased | 1.7 | ||
| Shares repurchased | $ 50.0 | ||
| Class A Common Stock | |||
| Stockholders Equity [Line Items] | |||
| Cash dividend per share (in dollars per share) | $ 0.25 | $ 0.24 | |
| Class B Common Stock | |||
| Stockholders Equity [Line Items] | |||
| Cash dividend per share (in dollars per share) | $ 0.25 | $ 0.24 | |