Income Taxes (Narrative) (Details) $ / shares in Units, $ in Millions, kr in Billions	3 Months Ended			12 Months Ended
	Dec. 31, 2022 USD ($)	Apr. 02, 2021 USD ($)	Apr. 02, 2021 DKK (kr)	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($)
Net deferred tax liabilities	$ 2,958			$ 2,192	$ 2,958
Valuation allowance, deferred tax asset, change in amount				2
Basis differences in investments outside the U.S.				$ 14,500
Statutory federal income tax rate				21.00%	21.00%	21.00%
Effective income tax rate				16.30%	11.40%	16.30%
Effective income tax rate reconciliation, other reconciling items, percent				0.90%	7.00%	3.00%
Income tax payments				$ 1,800	$ 1,800	$ 1,700
Employee service share-based compensation, tax benefit from exercise of stock options				80	85	118
Tax benefit				51	61	95
Net operating loss carryforwards				284
Operating loss carryforwards, valuation allowances				154
Deferred tax assets, valuation allowances	236			234	236
Gross unrecognized tax benefits	1,139			1,214	1,139	1,095	$ 1,175
Unrecognized tax benefits, net of offsetting indirect tax benefits	1,200			1,300	1,200
Unrecognized tax benefits, indirect tax benefits	65			73	65
Potential interest and penalties	171			199	171
Recognized potential interest and penalties				32	14	$ (182)
Unrecognized tax benefits that would impact effective tax rate	1,200			1,300	$ 1,200
Estimated reduction in unrecognized tax benefits within twelve months				$ 352
Income tax holiday, income tax benefits per diluted common share | $ / shares				$ 0.11	$ 0.10	$ 0.08
General business and foreign tax credit
Tax credit carryforwards				$ 273
Tax credit carryforward, valuation allowance				75
Deferred tax asset, other
Deferred tax assets, valuation allowances				5
Domestic tax authority | IRS
Proposed adjustments to taxable income, self-insurance, other	2,500
Foreign tax authority
Income tax examination, amount of tax assessments 2010-2015		$ 307	kr 2.1
Income tax holiday, aggregate dollar amount				83	$ 71	$ 59
United States
Net deferred tax liabilities	1,900			832	1,900
Non-U.S.
Net deferred tax liabilities	1,100			1,400	1,100
Discontinued operations
Discontinued operation, deferred tax assets	240				240
Discontinued operations, deferred tax liabilities	298				298
Discontinued operations | Discontinued operations
Net deferred tax liabilities	58				58
Unrecognized tax benefits, net of offsetting indirect tax benefits	76				76
Recognized potential interest and penalties				$ 6	2	$ (9)
Unrecognized tax benefits that would impact effective tax rate	76				76
Discontinued operations | Discontinued operations | United States
Net deferred tax liabilities	66				66
Discontinued operations | Discontinued operations | Non-U.S.
Deferred tax assets, net	$ 8				$ 8