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Condensed Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
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Condensed Consolidated Statements of Financial Position [Abstract] |  |
Allowance for receivables (in dollars) | $ 2 | $ 2
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized (in shares) | 2,000,000,000 | 2,000,000,000
Common stock, shares issued (in shares) | 85,444,714 | 85,309,260
Common stock, shares outstanding (in shares) | 85,444,714 | 85,309,260

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