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Pension Plans and Other Retirement Benefits - Summary of Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 12 Months Ended
Feb. 01, 2025
Feb. 03, 2024
Jan. 28, 2023
Other changes in plan assets and benefit obligations recognized in other comprehensive income:      
Defined Benefit Plan Net Periodic Benefit Cost Credit Expected Return Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag true    
Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Gain Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag true    
Funded Plan      
Net periodic pension cost:      
Service cost $ 32 $ 33 $ 48
Interest cost 71 72 58
Expected return on plan assets (81) (80) (89)
Amortization of prior service cost (1) 0 0
Amortization of net actuarial loss 0 0 18
Total expense 21 25 35
Other changes in plan assets and benefit obligations recognized in other comprehensive income:      
Net (gain) loss (37) (48) (153)
Prior service cost (credit) 2 (11) 0
Amortization of net (loss) 0 0 (18)
Amortization of prior service cost 1 0 0
Total (gain) loss recognized in other comprehensive income (34) (59) (171)
Total recognized in net periodic benefit cost and other comprehensive income (loss) $ (13) $ (34) $ (136)
Discount rate 5.70% 5.40% 3.40%
Expected rate of return on plan assets 5.75% 5.50% 5.25%
Rate of compensation increase 4.00% 4.00% 4.00%
Unfunded Plan      
Net periodic pension cost:      
Service cost $ 2 $ 2 $ 2
Interest cost 6 6 4
Expected return on plan assets 0 0 0
Amortization of prior service cost 0 0 0
Amortization of net actuarial loss 2 2 4
Total expense 10 10 10
Other changes in plan assets and benefit obligations recognized in other comprehensive income:      
Net (gain) loss (2) 0 (9)
Prior service cost (credit) 0 0 0
Amortization of net (loss) (2) (2) (4)
Amortization of prior service cost 0 0 0
Total (gain) loss recognized in other comprehensive income (4) (2) (13)
Total recognized in net periodic benefit cost and other comprehensive income (loss) $ 6 $ 8 $ (3)
Discount rate 5.80% 5.60% 3.30%
Rate of compensation increase 4.00% 4.00% 4.00%