Debt - Schedule of Long-term Debt (Details) $ / shares in Units, $ in Millions			6 Months Ended
	Mar. 13, 2020 USD ($)	Oct. 30, 2019 USD ($)	Feb. 27, 2020 USD ($) d $ / shares		Feb. 28, 2019 USD ($)	Aug. 29, 2019 USD ($)
Long-term Debt, by Current and Noncurrent [Abstract]
Finance Lease Effective Rate (in ten thousandths)			4.95%
Current Finance Lease Obligations			$ 153			$ 223
Long-Term Finance Lease Obligations			343			368
Total Finance Lease Obligations			496			591
Long-term Debt and Lease Obligation [Abstract]
Debt, Current, Total			237			1,310
Long-term Debt and Lease Obligation, Total			5,188			4,541
Total Debt and Finance Lease Obligation			$ 5,425			5,851
Convertible Senior Notes [Abstract]
Share Price | $ / shares			$ 50.58
Credit Facility [Abstract]
Proceeds from issuance of debt			$ 1,250		$ 1,800
Corporate Bonds | 2024 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			4.64%
Long-Term Debt Effective Rate (in ten thousandths)			4.76%
Current Portion of Long-term Debt			$ 0			0
Noncurrent Long-Term Debt			597			597
Long-term Debt, Total			$ 597			597
Corporate Bonds | 2026 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			4.98%
Long-Term Debt Effective Rate (in ten thousandths)			5.07%
Current Portion of Long-term Debt			$ 0			0
Noncurrent Long-Term Debt			497			497
Long-term Debt, Total			$ 497			497
Corporate Bonds | 2027 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			4.19%
Long-Term Debt Effective Rate (in ten thousandths)			4.27%
Current Portion of Long-term Debt			$ 0			0
Noncurrent Long-Term Debt			895			895
Long-term Debt, Total			$ 895			895
Corporate Bonds | 2029 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			5.33%
Long-Term Debt Effective Rate (in ten thousandths)			5.40%
Current Portion of Long-term Debt			$ 0			0
Noncurrent Long-Term Debt			696			696
Long-term Debt, Total			$ 696			696
Corporate Bonds | 2030 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			4.66%
Long-Term Debt Effective Rate (in ten thousandths)			4.73%
Current Portion of Long-term Debt			$ 0			0
Noncurrent Long-Term Debt			845			845
Long-term Debt, Total			$ 845			845
Corporate Bonds | 2025 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			5.50%
Long-Term Debt Effective Rate (in ten thousandths)			5.56%
Current Portion of Long-term Debt			$ 0			0
Noncurrent Long-Term Debt			0			516
Long-term Debt, Total			$ 0			516
Other Notes Payable | 2024 Term Loan A
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			2.90%
Long-Term Debt Effective Rate (in ten thousandths)			2.95%
Current Portion of Long-term Debt			$ 62			0
Noncurrent Long-Term Debt			1,186			0
Long-term Debt, Total			$ 1,248			0
Credit Facility [Abstract]
Proceeds from issuance of debt		$ 1,250
Percentage of original principal to be repaid annually			5.00%
Margin on variable rate financing (in hundredths)			1.25%
Other Notes Payable | 2024 Term Loan A | LIBOR | Minimum
Credit Facility [Abstract]
Margin on variable rate financing (in hundredths)			1.25%
Other Notes Payable | 2024 Term Loan A | LIBOR | Maximum
Credit Facility [Abstract]
Margin on variable rate financing (in hundredths)			2.00%
Other Notes Payable | Revolving credit facility | Subsequent Event
Credit Facility [Abstract]
Proceeds from issuance of debt	$ 2,500
Margin on variable rate financing (in hundredths)	1.25%
Other Notes Payable | Revolving credit facility | LIBOR | Minimum
Credit Facility [Abstract]
Margin on variable rate financing (in hundredths)			1.25%
Other Notes Payable | Revolving credit facility | LIBOR | Maximum
Credit Facility [Abstract]
Margin on variable rate financing (in hundredths)			2.00%
Convertible Debt
Convertible Senior Notes [Abstract]
Conversion rights, threshold percentage of applicable conversion price (in hundredths)			130.00%
Conversion rights, minimum number of trading days (in days) | d			20
Conversion rights, consecutive trading period (in days) | d			30
Conversion value of convertible notes			$ 752
Principal amount of convertible notes			150
Conversion value in excess of principal			$ 602
Convertible Debt | 2032D Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			3.13%
Long-Term Debt Effective Rate (in ten thousandths)			6.33%
Current Portion of Long-term Debt			$ 0	[1]		0
Noncurrent Long-Term Debt			129	[1]		127
Long-term Debt, Total			$ 129			127
Convertible Debt | 2033F Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (in ten thousandths)			2.13%
Long-Term Debt Effective Rate (in ten thousandths)			2.13%
Current Portion of Long-term Debt			$ 19	[1]		196
Noncurrent Long-Term Debt			0	[1]		0
Long-term Debt, Total			19			196
Convertible Debt | IMFT Member Debt
Long-term Debt, by Current and Noncurrent [Abstract]
Current Portion of Long-term Debt			0			693
Noncurrent Long-Term Debt			0			0
Long-term Debt, Total			$ 0			693
Reorganization obligation
Long-term Debt, by Current and Noncurrent [Abstract]
Long-Term Debt Effective Rate (in ten thousandths)			0.00%
Current Portion of Long-term Debt			$ 3			198
Noncurrent Long-Term Debt			0			0
Long-term Debt, Total			$ 3			$ 198

[1] Since the closing price of our common stock exceeded 130% of the conversion price per share for at least 20 trading days in the 30 trading day period ended on December 31, 2019, these notes are convertible by the holders through the calendar quarter ended March 31, 2020. Additionally, the closing price of our common stock also exceeded the thresholds for the calendar quarter ended March 31, 2020; therefore, these notes are convertible by the holders at any time through June 30, 2020.