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Summary of Significant Accounting Policies - Recently Adopted and Issued Accounting Pronouncements (Details) $ in Millions | Feb. 04, 2019 USD ($)
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Retained Earnings | Accounting standards update 2018-02 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Cumulative effect of accounting changes | $ 31
Accumulated other comprehensive income (loss) | Accounting standards update 2018-02 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Cumulative effect of accounting changes | 31
Operating lease right-of-use assets | Accounting standards update 2016-02 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Cumulative effect of accounting changes | 5,700
Operating lease liabilities | Accounting standards update 2016-02 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Cumulative effect of accounting changes | $ 6,000

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