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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - RETAINED EARNINGS (ACCUMULATED DEFICIT) - USD ($) $ in Millions | Sep. 30, 2019 | Jul. 01, 2018 | Jan. 01, 2018
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Accounting Standards Update 2016-02 |  |  |
Cumulative net effect of adoption, tax | $ 37 |  |
Accounting Standards Update 2014-09 |  |  |
Cumulative net effect of adoption, tax |  | $ (17) | $ (117)

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