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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) shares in Millions, $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Statement Of Financial Position [Abstract] |  |
Accounts and accrued income receivable, allowances | $ 16 | $ 14
Pledged securities included in debt securities | 76 | 91
Debt securities, amortized cost | $ 9,257 | $ 9,317
Preferred stock, par value | $ 0.00001 | $ 0.00001
Preferred stock, shares authorized | 0.5 | 0.5
Preferred stock, outstanding | 0.0 | 0.0
Common stock, par value | $ 0.00001 | $ 0.00001
Common stock, shares authorized | 300.0 | 300.0
Common stock, shares outstanding | 105.0 | 109.7

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