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Debt and Credit Facilities (Details) - USD ($) $ in Millions			3 Months Ended	9 Months Ended
	Aug. 06, 2025	Jun. 16, 2025	Sep. 27, 2025	Sep. 27, 2025	Sep. 28, 2024	Dec. 31, 2024
Debt Instrument [Line Items]
Net proceeds from issuance of debt				$ 2,733	$ 1,288
Other short-term borrowings			$ 179	$ 179		$ 0
day term loan | Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, term	364 days
Weighted average interest rate	5.30%
Line of Credit | Term Loan | Tranche 1 | Unsecured Debt
Debt Instrument [Line Items]
Outstanding debt	$ 750
Debt instrument, term	364 days
Commercial Paper
Debt Instrument [Line Items]
Weighted average interest rate			4.52%	4.52%
Line of credit facility borrowing capacity			$ 2,200	$ 2,200
Commercial Paper, And Other Short-Term Borrowings
Debt Instrument [Line Items]
Other short-term borrowings			$ 179	$ 179
Senior Notes | 4.85% senior notes due 2030
Debt Instrument [Line Items]
Debt instrument face amount		$ 600
Interest rate		4.85%	4.85%	4.85%
Senior Notes | 5.2% senior notes due 2032
Debt Instrument [Line Items]
Debt instrument face amount		$ 500
Interest rate		5.20%	5.20%	5.20%
Senior Notes | 5.55% senior notes due 2035
Debt Instrument [Line Items]
Debt instrument face amount		$ 900
Interest rate		5.55%	5.55%	5.55%
Senior Notes | 4.85% Senior Notes Due 2030, 5.2% Senior Notes Due 2032, 5.55% Senior Notes Due 2035
Debt Instrument [Line Items]
Net proceeds from issuance of debt		$ 2,000
Unsecured Debt | day term loan
Debt Instrument [Line Items]
Debt instrument, term	364 days
Unsecured Debt | Term loan due 2028
Debt Instrument [Line Items]
Debt instrument, term	3 years
Weighted average interest rate			5.25%	5.25%
Unsecured Debt | 6.5% debentures due 2025
Debt Instrument [Line Items]
Interest rate			6.50%	6.50%
Repayments of debt			$ 70
Unsecured Debt | 7.5% debentures due 2025
Debt Instrument [Line Items]
Interest rate			7.50%	7.50%
Repayments of debt				$ 252
Unsecured Debt | Line of Credit | Term Loan
Debt Instrument [Line Items]
Outstanding debt	$ 1,500
Unsecured Debt | Line of Credit | Term Loan | Tranche 2
Debt Instrument [Line Items]
Outstanding debt	$ 750
Debt instrument, term	3 years
Line of Credit | Revolving Credit Facility | 2021 Motorola Solutions Credit Agreement
Debt Instrument [Line Items]
Line of credit facility borrowing capacity			$ 2,250	$ 2,250

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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