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Financing (LYONS) (Narrative) (Details) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2001 USD ($) | Dec. 31, 2020 $ / shares
Debt Instrument [Line Items] |  |  |
Common stock par value | $ / shares | $ 0.01 |  | $ 0.01
Convertible debt | Zero-coupon LYONS due 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, face amount |  | $ 830 |
Debt instrument, convertible, conversion ratio |  | 0.381998 |
Debt conversion, converted instrument, shares issued | shares | 912 |  |
Debt conversion, converted instrument, deferred tax liability | $ 10 |  |

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