Debt - Short and Long-Term Debt (Details)	Nov. 30, 2023 USD ($)	Nov. 30, 2023 GBP (£)	Nov. 30, 2023 EUR (€)	Aug. 31, 2023 USD ($)	Nov. 17, 2021 USD ($)
Debt Instrument [Line Items]
Total short-term debt	$ 1,670,000,000			$ 917,000,000
Total long-term debt, less current portion	7,585,000,000			8,145,000,000
Other
Debt Instrument [Line Items]
Total short-term debt	96,000,000			68,000,000
August 2023 DDTL Due January 2026
Debt Instrument [Line Items]
Long-term debt	999,000,000			0
Credit facilities | November 2021 DDTL due November 2024
Debt Instrument [Line Items]
Long-term debt	0			289,000,000
Credit facilities | December 2022 DDTL due January 2026
Debt Instrument [Line Items]
Long-term debt	999,000,000			999,000,000
Unsecured Notes
Debt Instrument [Line Items]
Other	15,000,000			20,000,000
Unsecured Notes | $850 million note issuance
Debt Instrument [Line Items]
Face amount	$ 850,000,000
Unsecured Notes | 0.9500% unsecured notes due 2023
Debt Instrument [Line Items]
Face amount					$ 850,000,000
Stated interest rate	0.95%	0.95%	0.95%		0.95%
Unsecured Notes | Total $8 billion note issuance
Debt Instrument [Line Items]
Face amount	$ 8,000,000,000
Unsecured Notes | 3.800% unsecured notes due 2024
Debt Instrument [Line Items]
Stated interest rate	3.80%	3.80%	3.80%
Long-term debt	$ 0			1,156,000,000
Unsecured Notes | Total $1.5 billion note issuance
Debt Instrument [Line Items]
Face amount	$ 1,500,000,000
Unsecured Notes | 3.200% unsecured notes due 2030
Debt Instrument [Line Items]
Stated interest rate	3.20%	3.20%	3.20%
Long-term debt	$ 498,000,000			498,000,000
Unsecured Notes | 4.100% unsecured notes due 2050
Debt Instrument [Line Items]
Stated interest rate	4.10%	4.10%	4.10%
Long-term debt	$ 762,000,000			793,000,000
Unsecured Notes | Total $6 billion note issuance
Debt Instrument [Line Items]
Face amount	$ 6,000,000,000
Unsecured Notes | 3.450% unsecured notes due 2026
Debt Instrument [Line Items]
Stated interest rate	3.45%	3.45%	3.45%
Long-term debt	$ 1,444,000,000			1,444,000,000
Unsecured Notes | 4.650% unsecured notes due 2046
Debt Instrument [Line Items]
Stated interest rate	4.65%	4.65%	4.65%
Long-term debt	$ 313,000,000			318,000,000
Unsecured Notes | 4.500% unsecured notes due 2034
Debt Instrument [Line Items]
Stated interest rate	4.50%	4.50%	4.50%
Long-term debt	$ 301,000,000			301,000,000
Unsecured Notes | 4.800% unsecured notes due 2044
Debt Instrument [Line Items]
Stated interest rate	4.80%	4.80%	4.80%
Long-term debt	$ 805,000,000			869,000,000
Unsecured Notes | Total £700 million note issuance
Debt Instrument [Line Items]
Face amount | £		£ 700,000,000
Unsecured Notes | 3.600% unsecured Pound Sterling notes due 2025
Debt Instrument [Line Items]
Stated interest rate	3.60%	3.60%	3.60%
Long-term debt	$ 375,000,000			381,000,000
Unsecured Notes | Total €750 million note issuance
Debt Instrument [Line Items]
Face amount | €			€ 750,000,000
Unsecured Notes | 2.125% unsecured Euro notes due 2026
Debt Instrument [Line Items]
Stated interest rate	2.125%	2.125%	2.125%
Long-term debt	$ 819,000,000			814,000,000
Unsecured Notes | Total $4 billion note issuance
Debt Instrument [Line Items]
Face amount	$ 4,000,000,000
Unsecured Notes | 4.400% unsecured notes due 2042
Debt Instrument [Line Items]
Stated interest rate	4.40%	4.40%	4.40%
Long-term debt	$ 255,000,000			263,000,000
Commercial paper
Debt Instrument [Line Items]
Total short-term debt	128,000,000			0
Credit facilities | November 2021 DDTL due November 2024
Debt Instrument [Line Items]
Total short-term debt	290,000,000			0
Unsecured Notes | 0.9500% unsecured notes due 2023
Debt Instrument [Line Items]
Total short-term debt	0			850,000,000
Unsecured Notes | 3.800% unsecured notes due 2024
Debt Instrument [Line Items]
Total short-term debt	$ 1,156,000,000			$ 0