Debt - Components of Long-term Debt (Details) - USD ($) $ in Millions	Oct. 31, 2020	Feb. 01, 2020	Nov. 02, 2019
Debt Instrument [Line Items]
Effective interest rate	5.90%	4.74%	4.74%
Outstanding	$ 2,467	$ 1,867	$ 1,867
Unamortized debt discounts and deferred financing costs	(17)	(11)	(11)
Unsecured senior debt	$ 2,450	1,856	1,856
Senior Notes [Member] \| Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Effective interest rate	3.25%
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Outstanding	$ 350	350	350
Senior Notes [Member] \| Senior Notes 4.78% Due 2023 [Member]
Debt Instrument [Line Items]
Effective interest rate	4.78%
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Outstanding	$ 184	184	184
Senior Notes [Member] \| Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Effective interest rate	9.50%
Debt Instrument, Interest Rate, Stated Percentage	9.50%
Outstanding	$ 600
Senior Notes [Member] \| Senior Notes 4.25% Due 2025 [Member]
Debt Instrument [Line Items]
Effective interest rate	4.25%
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Outstanding	$ 650	650	650
Senior Notes [Member] \| Senior Notes Due 2029 [Member]
Debt Instrument [Line Items]
Effective interest rate	7.36%
Debt Instrument, Interest Rate, Stated Percentage	7.25%
Outstanding	$ 42	42	42
Senior Notes [Member] \| Senior Notes Due 2033 [Member]
Debt Instrument [Line Items]
Effective interest rate	6.05%
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Outstanding	$ 113	113	113
Senior Notes [Member] \| Senior Notes Due 2037 [Member]
Debt Instrument [Line Items]
Effective interest rate	6.89%
Debt Instrument, Interest Rate, Stated Percentage	6.88%
Outstanding	$ 101	101	101
Senior Notes [Member] \| Senior Notes Due 2045 [Member]
Debt Instrument [Line Items]
Effective interest rate	5.57%
Debt Instrument, Interest Rate, Stated Percentage	5.55%
Outstanding	$ 427	$ 427	$ 427

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(2)
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- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 944
-SubTopic 210
-Section S99
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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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