Debt Instrument, Convertible, Value In Excess Of Principle If Converted

No definition available.

Name:	msi_DebtInstrumentConvertibleValueInExcessOfPrincipleIfConverted
Namespace Prefix:	msi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

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

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=msi_A1.75SeniorConvertibleNotesDuein2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
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Other Financial Data - Earnings Per Common Share - Additional Information (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Apr. 02, 2022 USD ($) $ / shares shares	Apr. 03, 2021 shares	Jan. 01, 2022 USD ($)
Convertible Notes \| 1.75% senior convertible notes
Debt Instrument [Line Items]
Debt instrument face amount	$ 1,000		$ 1,000
Conversion rate	0.0049140
Conversion price (in USD per share) \| $ / shares	$ 203.50
Value in excess of principal if converted	$ 124
Stock Options
Debt Instrument [Line Items]
Securities excluded from computation of dilutive shares due to antidilutive nature (in shares) \| shares	0.2	0.3