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Basis of Presentation Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022
Other Significant Noncash Transactions [Line Items] |  |
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability | $ 4 | $ 7
Title Group |  |
Other Significant Noncash Transactions [Line Items] |  |
Noncash or Part Noncash Acquisition, Investments Acquired |  | $ 90

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