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Statements of Cash Flows Additional Information - Supplemental Cash Flows and Non Cash Investing and Financing Activities (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jan. 27, 2017	Apr. 28, 2017	Apr. 29, 2016	Apr. 24, 2015
Non-cash Investing and Financing Activities:
Capital expenditures incurred but not paid		$ 19	$ 18	$ 12
Non-cash extinguishment of sale-leaseback financing obligations	$ 19	19	0	0
Acquisition of software through long-term financing		0	0	12
Supplemental Cash Flow Information:
Income taxes paid, net of refunds		102	161	97
Interest paid		$ 44	$ 43	$ 33

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- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

+ References

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-Publisher FASB
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