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Stockholders' Equity (Reclassifications Out of Accumulated Other Comprehensive Income/ (Loss) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||||||||||
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Nov. 02, 2013
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Oct. 27, 2012
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Nov. 02, 2013
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Oct. 27, 2012
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Realized (gain)/loss on REITs, Redemption of SPG REIT units | $ 0 | $ (15) | $ 0 | $ (285) | [1] | |||||||
| Realized (gain)/loss on REITs, Sale of CBL REIT shares | 0 | (5) | 0 | (101) | ||||||||
| Realized (gain)/loss on REITs, Total, net of tax | 0 | (10) | 0 | (184) | ||||||||
| Amortization of retirement benefit plans, Actuarial loss/(gain) | 43 | 61 | 131 | 188 | ||||||||
| Amortization of retirement benefit plans, Prior service cost/(credit) | (1) | (4) | (2) | (11) | ||||||||
| Amortization of retirement benefit plans, Prior service (credit)/cost from a curtailment | 0 | (2) | (1) | (6) | ||||||||
| Amortization of retirement benefit plans, Total, net of tax | 26 | (52) | 80 | (120) | ||||||||
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Real estate and other, net [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Realized (gain)/loss on REITs, Redemption of SPG REIT units | (270) | |||||||||||
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Reclassification out of Accumulated Other Comprehensive Income [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Realized (gain)/loss on REITs, Total, net of tax | (10) | (184) | ||||||||||
| Total reclassifications | 26 | 22 | 80 | (79) | ||||||||
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Reclassification out of Accumulated Other Comprehensive Income [Member] | Real estate and other, net [Member] | SPG [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Realized (gain)/loss on REITs, Redemption of SPG REIT units | 0 | (270) | ||||||||||
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Reclassification out of Accumulated Other Comprehensive Income [Member] | Real estate and other, net [Member] | CBL [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Realized (gain)/loss on REITs, Redemption of SPG REIT units | (15) | (15) | ||||||||||
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Reclassification out of Accumulated Other Comprehensive Income [Member] | Total Amortization Of Retirement Benefit Plans, Net Of Tax [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Amortization of retirement benefit plans, Total, net of tax | 26 | 32 | 80 | 105 | ||||||||
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Reclassification out of Accumulated Other Comprehensive Income [Member] | SG&A [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Amortization of retirement benefit plans, Actuarial loss/(gain) | (1) | (1) | [2] | |||||||||
| Amortization of retirement benefit plans, Prior service cost/(credit) | (2) | [2] | (4) | [2] | (6) | [2] | (11) | [2] | ||||
| Amortization of retirement benefit plans, Prior service (credit)/cost from a curtailment | (5) | (5) | ||||||||||
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Reclassification out of Accumulated Other Comprehensive Income [Member] | Primary and Supplemental Pension Plan Total [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Amortization of retirement benefit plans, Actuarial loss/(gain) | 44 | [2] | 61 | [2] | 132 | [2] | 188 | [2] | ||||
| Amortization of retirement benefit plans, Prior service cost/(credit) | 1 | [2] | 4 | [2] | ||||||||
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Reclassification out of Accumulated Other Comprehensive Income [Member] | Income Tax Expense/(Benefit) [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||||||||||
| Realized (gain)/loss on REITs, Sale of CBL REIT shares | 5 | 101 | ||||||||||
| Amortization of retirement benefit plans, Tax (expense)/benefit | $ (16) | $ (20) | $ (49) | $ (67) | ||||||||
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