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Stockholders' (Deficit) Equity (Narrative) (Details) - USD ($) shares in Millions | 1 Months Ended |
--- | --- | ---
Feb. 10, 2022 | Feb. 11, 2021 | Dec. 31, 2021
Treasury Stock Repurchase Programs [Line Items] |  |  |
Treasury Stock Shares Repurchased |  |  | 243.7
Additional share repurchase amount authorized | $ 705,400,000 | $ 747,000,000 |
Stock Repurchase Program, Authorized Amount | 1,000,000,000 | 1,000,000,000 |
Remaining common stock available for repurchase | $ 294,600,000 | $ 253,000,000 |
Payments for Repurchase of Common Stock |  |  | $ 11,700,000,000
Share Buyback Program [Member] |  |  |
Treasury Stock Repurchase Programs [Line Items] |  |  |
Remaining common stock available for repurchase |  |  | $ 382,600,000

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