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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended
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Jun. 30, 2021 | Mar. 31, 2021
Income Tax Disclosure [Abstract] |  |
Income tax expense, elimination of disproportionate tax | $ 11 | $ 5

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration