Accumulated Other Comprehensive Loss (Details) $ in Millions	6 Months Ended
	Aug. 01, 2020 USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 11,833
Other comprehensive income before reclassifications, net of tax	(9)
Amounts reclassified from AOCI, net of tax	44
Ending balance	12,578
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(12)
Other comprehensive income before reclassifications, net of tax	(9)
Amounts reclassified from AOCI, net of tax	0
Ending balance	(21)
Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(19)
Other comprehensive income before reclassifications, net of tax	0
Amounts reclassified from AOCI, net of tax	0
Ending balance	(19)
Pension
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(837)
Other comprehensive income before reclassifications, net of tax	0
Amounts reclassified from AOCI, net of tax	44
Ending balance	(793)
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(868)
Ending balance	$ (833)