Discontinued Operations Discontinued Operations - Balance Sheet (Details) - USD ($) $ in Millions	Sep. 08, 2018	Feb. 24, 2018	Sep. 09, 2017
Current assets
Cash and cash equivalents	$ 4	$ 7	$ 6
Receivables, net	5	8
Inventories, net	51	109
Other current assets	3	6
Current assets of discontinued operations	63	130
Long-term assets [Abstract]
Property, plant and equipment, net	54	74
Intangible assets, net	0	1
Deferred tax assets	8	8
Other assets	1	1
Long-term assets of discontinued operations	63	84
Total assets of discontinued operations	126	214
Current liabilities
Accounts payable	31	51
Accrued vacation, compensation and benefits	18	20
Current maturities of capital lease obligations	2	2
Other current liabilities	11	9
Current liabilities of discontinued operations	62	82
Liabilities, Noncurrent [Abstract]
Long-term capital lease obligations	13	14
Other long-term liabilities	1	3
Long-term liabilities of discontinued operations	14	17
Total liabilities of discontinued operations	76	99
Net assets of discontinued operations	$ 50	$ 115