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Stock Repurchases - Narrative (Details) - Stock Repurchase Program 2011 - shares | 133 Months Ended |
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Oct. 31, 2022 | Sep. 22, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock repurchase program additional number of shares authorized approved (in shares) |  | 160,000,000
Stock repurchased (in shares) | 229,098,396 |
Number of shares available for repurchase under stock repurchase program (in shares) | 162,901,604 |
Common Stock |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Common stock authorized for repurchase (in shares) |  | 392,000,000

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