Nature of Operations and Summary of Significant Accounting Policies - Acquisition-related Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Intangible Assets [Line Items]
Definite-lived intangible assets, gross	$ 31,374	$ 30,347
Accumulated Amortization	(15,939)	(14,140)
Estimated future amortization expense of definite-lived intangible assets	15,435	16,207
Acquisition-related intangible assets	32,609	31,582
Acquisition-related intangible assets	16,670	17,442
Finite-Lived Intangible Assets, Net, Future Amortization Expense [Abstract]
2024	1,931
2025	1,630
2026	1,460
2027	1,430
2028	1,398
2029 and thereafter	7,586
Estimated future amortization expense of definite-lived intangible assets	15,435	16,207
Other intangible assets	$ 37	36
Maximum
Intangible Assets [Line Items]
Estimated useful life	20 years
Tradenames
Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 1,235	1,235
Customer relationships
Intangible Assets [Line Items]
Definite-lived intangible assets, gross	22,762	21,792
Accumulated Amortization	(9,410)	(8,330)
Estimated future amortization expense of definite-lived intangible assets	13,352	13,462
Finite-Lived Intangible Assets, Net, Future Amortization Expense [Abstract]
Estimated future amortization expense of definite-lived intangible assets	13,352	13,462
Product technology
Intangible Assets [Line Items]
Definite-lived intangible assets, gross	5,894	5,882
Accumulated Amortization	(4,591)	(4,360)
Estimated future amortization expense of definite-lived intangible assets	1,303	1,522
Finite-Lived Intangible Assets, Net, Future Amortization Expense [Abstract]
Estimated future amortization expense of definite-lived intangible assets	1,303	1,522
Tradenames
Intangible Assets [Line Items]
Definite-lived intangible assets, gross	1,634	1,635
Accumulated Amortization	(1,079)	(1,008)
Estimated future amortization expense of definite-lived intangible assets	555	627
Finite-Lived Intangible Assets, Net, Future Amortization Expense [Abstract]
Estimated future amortization expense of definite-lived intangible assets	555	627
Backlog
Intangible Assets [Line Items]
Definite-lived intangible assets, gross	1,084	1,038
Accumulated Amortization	(859)	(442)
Estimated future amortization expense of definite-lived intangible assets	225	596
Finite-Lived Intangible Assets, Net, Future Amortization Expense [Abstract]
Estimated future amortization expense of definite-lived intangible assets	$ 225	$ 596