Debt - Long-term Debt (Details) - USD ($) $ in Millions		Feb. 29, 2024	Jan. 12, 2024	Aug. 31, 2023
Long-term Debt by Current and Noncurrent
Total Long-term Debt		$ 12,018
Finance Lease Effective Rate (in ten thousandths)		4.48%		3.86%
Current Finance Lease Obligations		$ 238		$ 172
Long-Term Finance Lease Obligations		1,466		1,109
Total Finance Lease Obligations		1,704		1,281
Long-term Debt and Lease Obligation
Current debt (including finance lease obligation)		344		278
Long-term debt (including finance lease obligation)		13,378		13,052
Total Net Carrying Amount of Debt (including finance lease obligation)		$ 13,722		$ 13,330
Current finance lease liability, statement of financial position		Current debt (including finance lease obligation)		Current debt (including finance lease obligation)
Noncurrent finance lease liability, statement of financial position		Long-term debt (including finance lease obligation)		Long-term debt (including finance lease obligation)
Interest rate swap | Fair value hedges | Designated hedging instruments
Long-term Debt and Lease Obligation
Notional or Contractual Amount		$ 900		$ 900
SOFR | Interest rate swap | Fair value hedges | Designated hedging instruments
Long-term Debt and Lease Obligation
Spread on 2027 Variable Interest Rate		3.33%
Term Loan | 2025 Term Loan A
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		6.676%
Effective Rate (in ten thousandths)		6.81%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		649		1,050
Total Long-term Debt		$ 649		1,050
Term Loan | 2026 Term Loan A
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		6.801%
Effective Rate (in ten thousandths)		6.94%
Current Portion of Long-term Debt		$ 49		49
Noncurrent Long-Term Debt		896		921
Total Long-term Debt		$ 945		970
Term Loan | 2027 Term Loan A
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		6.926%
Effective Rate (in ten thousandths)		7.06%
Current Portion of Long-term Debt		$ 57		57
Noncurrent Long-Term Debt		1,035		1,063
Total Long-term Debt		1,092		1,120
Term Loan | 2024 Term Loan A
Long-term Debt by Current and Noncurrent
Current Portion of Long-term Debt		0		0
Noncurrent Long-Term Debt		0		587
Total Long-term Debt		$ 0		587
Corporate Bonds | 2026 Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		4.975%
Effective Rate (in ten thousandths)		5.07%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		499		499
Total Long-term Debt		$ 499		499
Corporate Bonds | 2027 Notes(1)
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)	[1]	4.185%
Effective Rate (in ten thousandths)	[1]	4.27%
Current Portion of Long-term Debt	[1]	$ 0		0
Noncurrent Long-Term Debt	[1]	812		798
Total Long-term Debt	[1]	$ 812		798
Corporate Bonds | 2028 Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		5.375%
Effective Rate (in ten thousandths)		5.52%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		597		596
Total Long-term Debt		$ 597		596
Corporate Bonds | 2029 A Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		5.327%
Effective Rate (in ten thousandths)		5.40%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		698		697
Total Long-term Debt		$ 698		697
Corporate Bonds | 2029 B Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		6.75%
Effective Rate (in ten thousandths)		6.54%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		1,262		1,263
Total Long-term Debt		$ 1,262		1,263
Corporate Bonds | 2030 Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		4.663%
Effective Rate (in ten thousandths)		4.73%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		847		846
Total Long-term Debt		$ 847		846
Corporate Bonds | 2031 Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		5.30%	5.30%
Effective Rate (in ten thousandths)		5.41%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		993		0
Total Long-term Debt		$ 993		0
Corporate Bonds | 2032 Green Bonds
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		2.703%
Effective Rate (in ten thousandths)		2.77%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		995		995
Total Long-term Debt		$ 995		995
Corporate Bonds | 2033 A Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		5.875%
Effective Rate (in ten thousandths)		5.96%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		745		745
Total Long-term Debt		$ 745		745
Corporate Bonds | 2033 B Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		5.875%
Effective Rate (in ten thousandths)		6.01%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		891		890
Total Long-term Debt		$ 891		890
Corporate Bonds | 2041 Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		3.366%
Effective Rate (in ten thousandths)		3.41%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		497		497
Total Long-term Debt		$ 497		497
Corporate Bonds | 2051 Notes
Long-term Debt by Current and Noncurrent
Stated Rate (exact percentage)		3.477%
Effective Rate (in ten thousandths)		3.52%
Current Portion of Long-term Debt		$ 0		0
Noncurrent Long-Term Debt		496		496
Total Long-term Debt		$ 496		$ 496

[1] In 2021, we entered into fixed-to-floating interest rate swaps on the 2027 Notes with an aggregate $900 million notional amount equal to the principal amount of the 2027 Notes. The resulting variable interest paid is at a rate equal to SOFR plus approximately 3.33%. The fixed-to-floating interest rate swaps are accounted for as fair value hedges, and as a result, the carrying values of our 2027 Notes reflect adjustments in fair value.