CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Aug. 17, 2019	Aug. 18, 2018	Aug. 17, 2019	Aug. 18, 2018
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Realized gains and losses on available for sale securities, income tax				$ (1)
Change in pension and other postretirement defined benefit plans, income tax	$ 2	$ 3	$ 5	7
Unrealized gains and losses on cash flow hedging activities, income tax	(17)	(2)	(26)	(1)
Amortization of unrealized gains and losses on cash flow hedging activities, income tax	$ 1	$ 1	$ 2	$ 2

Amount of tax expense (benefit), after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

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Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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