Debt (Narrative) (Details)		1 Months Ended			3 Months Ended	9 Months Ended
	Sep. 29, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Oct. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Feb. 29, 2024 USD ($)	Dec. 31, 2023 USD ($)	Nov. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)
Debt Instrument [Line Items]
Commercial paper outstanding						$ 0			$ 0
Upfront fees						23,000,000	$ 0
Other Debt Facilities
Debt Instrument [Line Items]
Revolving credit facility, amount outstanding						0			0
Other credit and overdraft facilities						124,000,000			113,000,000
Letters of credit						$ 153,000,000			139,000,000
Senior notes – 3.50% due 2024
Debt Instrument [Line Items]
Interest rate (as a percent)		3.50%				3.50%
Senior notes – 3.50% due 2024 | Senior Notes
Debt Instrument [Line Items]
Repayments of debt		$ 600,000,000
3.875% Senior Debt Obligations October 2024
Debt Instrument [Line Items]
Interest rate (as a percent)			3.875%
3.875% Senior Debt Obligations October 2024 | Senior Notes
Debt Instrument [Line Items]
Repayments of debt			$ 1,000,000,000
Senior notes – 5.150% due 2034
Debt Instrument [Line Items]
Interest rate (as a percent)						5.15%		5.15%
Senior notes – 5.150% due 2034 | Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount								$ 500,000,000
Senior notes – 5.450% due 2054
Debt Instrument [Line Items]
Interest rate (as a percent)						5.45%		5.45%
Senior notes – 5.450% due 2054 | Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount								$ 500,000,000
4.05% Senior Debt Obligations October 2023
Debt Instrument [Line Items]
Interest rate (as a percent)				4.05%
4.05% Senior Debt Obligations October 2023 | Senior Notes
Debt Instrument [Line Items]
Repayments of debt				$ 250,000,000
Senior notes – 5.400% due 2033
Debt Instrument [Line Items]
Interest rate (as a percent)					5.40%	5.40%	5.40%
Senior notes – 5.400% due 2033 | Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount					$ 600,000,000		$ 600,000,000
Senior notes – 5.700% due 2053
Debt Instrument [Line Items]
Interest rate (as a percent)					5.70%	5.70%	5.70%
Senior notes – 5.700% due 2053 | Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount					$ 1,000,000,000		$ 1,000,000,000
Senior notes – 5.450% due 2053
Debt Instrument [Line Items]
Interest rate (as a percent)						5.45%					5.45%
Senior notes – 5.450% due 2053 | Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount											$ 600,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, term (in years)				5 years
Revolving credit facility, borrowing capacity				$ 3,500,000,000
Revolving Credit Facility | New Facility
Debt Instrument [Line Items]
Revolving credit facility, borrowing capacity					2,800,000,000		2,800,000,000
Revolving credit facility, amount outstanding						$ 0			$ 0
Revolving Credit Facility | Uncommitted Credit Facility
Debt Instrument [Line Items]
Debt instrument, term (in years)				1 year
Revolving credit facility, amount outstanding					0		$ 0
Repayments of lines of credit					$ 200,000,000
Debt, weighted average interest rate (as a percent)					5.50%		5.50%
Commercial Paper
Debt Instrument [Line Items]
Short-term debt				$ 2,800,000,000						$ 3,500,000,000
Line of Credit | Bridge Loan Facility
Debt Instrument [Line Items]
Debt instrument, term (in years)	364 days
Revolving credit facility, borrowing capacity	$ 7,750,000,000
Percentage of loans acquired with credit facility (as a percent)	1
Upfront fees	$ 23,000,000