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Income Taxes - Effective Income Tax Rate Reconciliation (Details 2) - USD ($) $ in Millions | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2017 | Aug. 30, 2018 | Aug. 30, 2018 | Aug. 31, 2017 | Sep. 01, 2016
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |  |  |
U.S. federal income tax (provision) benefit at statutory rate |  |  | $ (3,677) | $ (1,819) | $ 98
Foreign tax rate differential |  |  | 2,572 | 1,571 | (300)
Repatriation Tax related to the Tax Act |  |  | (1,049) | 0 | 0
Remeasurement of deferred tax assets and liabilities related to the Tax Act |  |  | (179) | 0 | 0
Change in valuation allowance |  |  | 2,079 | 64 | 63
Change in unrecognized tax benefits |  |  | 60 | 12 | 52
Tax credits |  |  | 90 | 66 | 48
Other |  |  | (64) | (8) | 20
Income tax (provision) benefit |  |  | $ (168) | $ (114) | $ (19)
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |  |
U.S. federal statutory rate (percent) | 35.00% | 21.00% | 25.70% | 35.00% | 35.00%
Foreign tax rate differential (percent) |  |  | (18.00%) | (30.20%) | (106.80%)
Repatriation Tax related to the Tax Act (percent) |  |  | 7.30% | 0.00% | 0.00%
Remeasurement of deferred tax assets and liabilities related to the Tax Act (percent) |  |  | 1.30% | 0.00% | 0.00%
Change in valuation allowance (percent) |  |  | (14.50%) | (1.20%) | 22.40%
Change in unrecognized tax benefits (percent) |  |  | (0.40%) | (0.20%) | 18.50%
Tax credits (percent) |  |  | (0.60%) | (1.30%) | 17.10%
Other (percent) |  |  | 0.40% | 0.10% | 7.00%
Effective tax rate (percent) |  |  | 1.20% | 2.20% | (6.80%)
Provisional release of valuation allowance on net deferred tax assets of US operations |  |  | $ 1,340 |  |
Provisional Repatriation Tax, net of adjustments related to uncertain tax positions |  |  | $ (1,030) |  |

X
- Definition Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporations deemed repatriated pursuant to Tax Cuts and Jobs Act. + References No definition available. + Details
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- Definition Amount of other deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. For example, but not limited to, acquisition-date income tax benefits or expenses recognized from changes in the acquirer's valuation allowance for its previously existing deferred tax assets resulting from a business combination and adjustments to beginning-of-year balance of a valuation allowance because of a change in circumstance causing a change in judgment about the realizability of the related deferred tax asset in future periods. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 + Details
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