Share-Based Compensation	9 Months Ended
Share-Based Compensation	May 31, 2017
Share-based Compensation [Abstract]
Share-Based Compensation	Share-Based Compensation In the first quarter of fiscal 2017, as part of the annual awards under the Company's Long-Term Incentive Plan, the Compensation Committee of the Company's Board of Directors ("Compensation Committee") granted 142,635 restricted stock units ("RSUs") and 134,899 performance share awards to the Company's key employees and officers under the Company's 1993 Amended and Restated Stock Incentive Plan ("SIP"). The RSUs generally have a five-year term and vest 20% per year commencing October 31, 2017. The aggregate fair value of all of the RSUs granted was based on the market closing price of the underlying Class A common stock on the grant date and totaled $3 million. The compensation expense associated with the RSUs is recognized over the requisite service period of the awards, net of forfeitures. The performance share awards are comprised of two separate and distinct awards with different vesting conditions. The Compensation Committee granted 65,506 performance share awards based on a relative Total Shareholder Return ("TSR") metric over a performance period spanning November 1, 2016 to August 31, 2019. Award share payouts range from a threshold of 50% to a maximum of 200% based on the relative ranking of the Company's TSR among a designated peer group of 16 companies. The TSR award stipulates certain limitations to the payout in the event the payout reaches a defined ceiling level or the Company's TSR is negative. The TSR awards contain a market condition and, therefore, once the award recipients complete the requisite service period, the related compensation expense based on the grant-date fair value is not changed, regardless of whether the market condition has been satisfied. The estimated fair value of the TSR awards at the date of grant was $2 million. The Company estimated the fair value of the TSR awards using a Monte-Carlo simulation model utilizing several key assumptions including expected Company and peer company share price volatility, correlation coefficients between peers, the risk-free rate of return, the expected dividend yield and other award design features. The remaining 69,393 performance share awards have a three-year performance period consisting of the Company’s 2017, 2018 and 2019 fiscal years. The performance targets are based on the Company's cash flow return on investment ("CFROI") over the three-year performance period, with award payouts ranging from a threshold of 50% to a maximum of 200%. The fair value of the awards granted was based on the market closing price of the underlying Class A common stock on the grant date and totaled $2 million. The compensation expense associated with performance share awards is recognized over the requisite service period, net of forfeitures. Performance share awards will be paid in Class A common stock as soon as practicable after the end of the requisite service period and vesting date of October 31, 2019. In the second quarter of fiscal 2017, the Company granted deferred stock units ("DSUs") to each of its non-employee directors under the Company's SIP. Each DSU gives the director the right to receive one share of Class A common stock at a future date. The grant included an aggregate of 30,312 shares that will vest on the day before the Company's 2018 annual meeting, subject to continued Board service. The total value of these awards at the grant date was $1 million. In the third quarter of fiscal 2017, the Compensation Committee granted the second half of the fiscal 2017 annual award comprised of 172,227 RSUs and 167,358 performance share awards, which performance share awards consisted of 81,262 TSR awards and 86,096 CFROI awards, to the Company's key employees and officers under its SIP. The awards granted in the third quarter of fiscal 2017 have terms substantially similar to the awards granted in the first quarter of fiscal 2017, as described above in this Note, except that the performance period for the TSR awards started on April 27, 2017, and the performance period for the CFROI awards started on March 1, 2017. The fair values of RSUs, TSR awards and CFROI awards granted in the third quarter of fiscal 2017 were $3 million, $2 million, and $2 million, respectively.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.