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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - ITEMS RECLASSIFIED OUT OF AOCI (Details) - USD ($) $ in Millions | 3 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 02, 2019 | Nov. 10, 2018 | Aug. 18, 2018 | Feb. 03, 2018 | Nov. 04, 2017 | Aug. 12, 2017 | May 26, 2018 | May 20, 2017 | Feb. 02, 2019 | Feb. 03, 2018 | Jan. 28, 2017
Reclassification out of AOCI and the related tax effects |  |  |  |  |  |  |  |  |  |  |
Amortization of gains and losses on cash flow hedging activities | $ 142 | $ 142 | $ 144 | $ 148 | $ 136 | $ 138 | $ 192 | $ 177 | $ 620 | $ 601 | $ 522
Realized gains on available for sale securities | 5,013 | 4,556 | 4,612 | 5,456 | 4,701 | 4,517 | 6,122 | 6,367 | 20,305 | 21,041 | 19,162
Tax expense | 66 | 91 | 127 | (957) | 215 | 189 | 616 | 148 | 900 | (405) | 957
Net of tax | $ (259) | $ (317) | $ (508) | $ (854) | $ (397) | $ (353) | $ (2,026) | $ (303) | (3,110) | (1,907) | (1,975)
Total reclassifications, net of tax |  |  |  |  |  |  |  |  | 48 | 52 | 21
Cash Flow Hedging Activities |  |  |  |  |  |  |  |  |  |  |
Reclassification out of AOCI and the related tax effects |  |  |  |  |  |  |  |  |  |  |
Tax expense |  |  |  |  |  |  |  |  | (3) | (3) |
Total reclassifications, net of tax |  |  |  |  |  |  |  |  | 5 | 3 |
Pension and Postretirement Defined Benefit Plans |  |  |  |  |  |  |  |  |  |  |
Reclassification out of AOCI and the related tax effects |  |  |  |  |  |  |  |  |  |  |
Amortization of amounts included in net periodic pension expense |  |  |  |  |  |  |  |  | 56 | 69 | 53
Tax expense |  |  |  |  |  |  |  |  | (13) | (20) | (20)
Total reclassifications, net of tax |  |  |  |  |  |  |  |  | 43 | 49 | 33
Reclassification out of AOCI | Cash Flow Hedging Activities |  |  |  |  |  |  |  |  |  |  |
Reclassification out of AOCI and the related tax effects |  |  |  |  |  |  |  |  |  |  |
Amortization of gains and losses on cash flow hedging activities |  |  |  |  |  |  |  |  | 8 | 6 | 2
Tax expense |  |  |  |  |  |  |  |  | (3) | (3) |
Net of tax |  |  |  |  |  |  |  |  | $ 5 | $ 3 | 2
Reclassification out of AOCI | Available for sale Securities |  |  |  |  |  |  |  |  |  |  |
Reclassification out of AOCI and the related tax effects |  |  |  |  |  |  |  |  |  |  |
Realized gains on available for sale securities |  |  |  |  |  |  |  |  |  |  | (27)
Tax expense |  |  |  |  |  |  |  |  |  |  | 13
Net of tax |  |  |  |  |  |  |  |  |  |  | $ (14)

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