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Equity Equity (Stock Repurchases) (Details) - USD ($) $ / shares in Units, $ in Millions | 126 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2021
Equity, Class of Treasury Stock [Line Items] |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  | $ 264
Treasury Stock, Shares | 153,028,526 | 151,923,418
Acquisition of treasury stock (shares) | 154,300,000 |
Treasury Stock Acquired, Average Cost Per Share | $ 12.12 |
Treasury Stock, Value, Acquired, Cost Method | $ 1,900 |

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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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