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Borrowings (Narrative) (Details)	1 Months Ended			12 Months Ended
	Sep. 30, 2021 USD ($)	Aug. 31, 2020 USD ($)	May 31, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2021 EUR (€)	Sep. 30, 2021 GBP (£)
Debt Instrument [Line Items]
Weighted average interest rate				420.00%
Line of credit facility, remaining borrowing capacity				$ 7,330,000,000
Debt extinguishment loss (Note 11)				$ 0	$ 405,200,000	$ 0
Description of derivative activity volume percent				10.00%
Debt instrument, interest rate, effective percentage				2.87%	2.27%
Foreign Currency Denominated Debt
Debt Instrument [Line Items]
Payment for debt extinguishment	$ 1,910,000,000
Extinguishment of debt, amount	1,500,000,000
Debt extinguishment loss (Note 11)	405,200,000
Foreign Currency Denominated Debt | 0.500% Notes due 2033
Debt Instrument [Line Items]
Debt instrument, face amount | €							€ 600,000,000
Stated interest rate							50.00%	50.00%
Foreign Currency Denominated Debt | 1.125% Notes due 2051
Debt Instrument [Line Items]
Debt instrument, face amount | €							€ 500,000,000
Stated interest rate							112.50%	112.50%
Foreign Currency Denominated Debt | 1.375% Notes due 2061
Debt Instrument [Line Items]
Debt instrument, face amount | €							€ 700,000,000
Stated interest rate							137.50%	137.50%
Foreign Currency Denominated Debt | 1.625% Notes due 2043
Debt Instrument [Line Items]
Debt instrument, face amount | £								£ 250,000,000
Stated interest rate							162.50%	162.50%
Foreign Currency Denominated Debt | 3.95% notes due 2049
Debt Instrument [Line Items]
Stated interest rate							395.00%	395.00%
Extinguishment of debt, amount	541,800,000
Foreign Currency Denominated Debt | 4.15% notes due 2059
Debt Instrument [Line Items]
Stated interest rate							415.00%	415.00%
Extinguishment of debt, amount	408,700,000
Foreign Currency Denominated Debt | 3.375% notes due 2029
Debt Instrument [Line Items]
Stated interest rate							337.50%	337.50%
Extinguishment of debt, amount	$ 219,400,000
Senior Notes | 0.500% Notes due 2033
Debt Instrument [Line Items]
Stated interest rate				0.50%
Senior Notes | 1.125% Notes due 2051
Debt Instrument [Line Items]
Stated interest rate				1.125%
Senior Notes | 1.375% Notes due 2061
Debt Instrument [Line Items]
Stated interest rate				1.375%
Senior Notes | 1.625% Notes due 2043
Debt Instrument [Line Items]
Stated interest rate				1.625%
Senior Notes | 3.95% notes due 2049
Debt Instrument [Line Items]
Stated interest rate				3.95%
Senior Notes | 4.15% notes due 2059
Debt Instrument [Line Items]
Stated interest rate				4.15%
Senior Notes | 3.375% notes due 2029
Debt Instrument [Line Items]
Stated interest rate				3.375%
Senior Notes | 2.25% notes due 2050
Debt Instrument [Line Items]
Debt instrument, face amount		$ 250,000,000	$ 1,000,000,000
Stated interest rate		2.25%	2.25%	2.25%
Proceeds from issuance of debt			$ 988,600,000
Senior Notes | 2.50% notes due 2060
Debt Instrument [Line Items]
Debt instrument, face amount		$ 850,000,000
Stated interest rate		2.50%		2.50%
Senior Notes | Senior Notes Due May 2050 and September 2060
Debt Instrument [Line Items]
Proceeds from issuance of debt		$ 1,070,000,000.00
Maturity Date, 2023
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 3,000,000,000
Maturity Date, 2019
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 4,000,000,000
Debt instrument, term				364 days

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