Fair Value of Financial Assets and Liabilities (Tables)

9 Months Ended

Oct. 29, 2017

Notes to financial statements [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

		Fair Value at
	Pricing Category	October 29, 2017		January 29, 2017
		(In millions)
Assets
Cash equivalents and marketable securities:
Corporate debt securities	Level 2	$	1,510	$	2,388
Debt securities of United States government agencies	Level 2	$	902	$	1,188
Debt securities issued by the United States Treasury	Level 2	$	635	$	850
Asset-backed securities	Level 2	$	288	$	489
Mortgage-backed securities issued by United States government-sponsored enterprises	Level 2	$	141	$	162
Foreign government bonds	Level 2	$	42	$	70
Money market funds	Level 1	$	2,609	$	321
Liabilities
Current liability:
1.00% Convertible Senior Notes (1)	Level 2	$	245	$	4,474
Other noncurrent liabilities:
2.20% Notes Due 2021 (1)	Level 2	$	996	$	975
3.20% Notes Due 2026 (1)	Level 2	$	1,007	$	961
Interest rate swap (2)	Level 2	$	3	$	2

(1) The remaining 1.00% Convertible Senior Notes, 2.20% Notes Due 2021, and 3.20% Notes Due 2026 are carried on our Condensed Consolidated Balance Sheets at their original issuance value, net of unamortized debt discount and issuance costs, and are not marked to fair value each period. See Note 11 of these Notes to Condensed Consolidated Financial Statements for additional information.

(2) Please refer to Note 9 of these Notes to Condensed Consolidated Financial Statements for a discussion regarding our interest rate swap.