Summarized Disaggregated Revenue From Contracts With Customers By Product Line (Detail)		3 Months Ended		6 Months Ended
		Oct. 27, 2018	Oct. 28, 2017	Oct. 27, 2018	Oct. 28, 2017
Segment Reporting Information [Line Items]
Sales by Product Line		100.00%	100.00%	100.00%	100.00%
Media
Segment Reporting Information [Line Items]
Sales by Product Line	[1]	69.00%	71.00%	70.00%	72.00%
Digital
Segment Reporting Information [Line Items]
Sales by Product Line	[2]	2.00%	3.00%	3.00%	3.00%
Other
Segment Reporting Information [Line Items]
Sales by Product Line	[3]	29.00%	26.00%	27.00%	25.00%

[1] (a) Includes tangible books, music, movies, rentals and newsstand.

[2] (b) Includes NOOK®, related accessories, eContent and warranties.

[3] (c) Includes Toys & Games, café products, gifts and miscellaneous other.