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Stock-Based Compensation Plans (Tables) | 12 Months Ended
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Sep. 02, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of RSU Transactions | The following table summarizes RSU transactions during 2018:
| Number of Units (in 000’s) |  | Weighted-Average Grant Date Fair Value
Outstanding at the end of 2017 | 8,199 |  |  | $ | 128.15 |
Granted | 3,722 |  |  | 156.19 |
Vested and delivered | (4,088 | ) |  | 129.49 |
Forfeited | (255 | ) |  | 138.57 |
Outstanding at the end of 2018 | 7,578 |  |  | $ | 140.85 |
Summary of Stock-Based Compensation Expense and Related Tax Benefits | The following table summarizes stock-based compensation expense and the related tax benefits under the Company’s plans:
| 2018 |  | 2017 |  | 2016
Stock-based compensation expense before income taxes | $ | 544 |  |  | $ | 514 |  |  | $ | 459 |
Less income tax benefit (1) | (116 | ) |  | (167 | ) |  | (150 | )
Stock-based compensation expense, net of income taxes | $ | 428 |  |  | $ | 347 |  |  | $ | 309 |
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(1) | In 2018, the income tax benefit reflects the reduction in the U.S. federal statutory income tax rate from 35% to 21%.

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding restricted stock units that are fully vested and expected to vest. Includes, but is not limited to, unvested restricted stock units for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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