Debt (Narrative) (Details) € in Millions		1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 24, 2023 USD ($) period	May 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2023 EUR (€)	Sep. 30, 2023 USD ($)	Jun. 01, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Short-term borrowings					$ 0		$ 0
Carrying value					25,098,000,000		26,680,000,000
Accrued interest on long-term debt					190,000,000		$ 411,000,000
Notes Payable, Other Payables [Member] | Senior Unsecured Notes, 2.950%, Maturing May 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		2.95%
Repayments of senior unsecured debt		$ 218,000,000
Notes Payable, Other Payables [Member] | Euro Notes, 1.000%, Maturing First Quarter 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			1.00%	1.00%
Repayments of senior unsecured debt			$ 1,300,000,000	€ 1,250
Revolving Credit Facility [Member] | Line of Credit [Member] | Revolving Credit Facility Due August 2025 [Member]
Debt Instrument [Line Items]
Face amount					$ 3,000,000,000
Long-term debt, term					5 years
Debt instrument, unused borrowing capacity, amount					$ 3,000,000,000
Revolving Credit Facility [Member] | Line of Credit [Member] | Revolving Credit Facility Due October 24, 2028 [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Long-term debt, term	5 years
Maximum borrowing capacity	$ 3,000,000,000
Line of credit facility, number of additional periods | period	2
Line of credit facility, additional period term	1 year
Debt instrument, covenant, consolidated EBITDA to interest expense ratio, minimum	4.0
Term Secured Overnight Financing Rate ("Term SOFR") [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | Revolving Credit Facility Due August 2025 [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					1.00%
Term Loan [Member]
Debt Instrument [Line Items]
Face amount						$ 2,000,000,000