Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Income Statement [Abstract]
Net sales from products	$ 848	$ 801	$ 1,551	$ 1,503
Net sales from services	649	629	1,226	1,120
Net sales	1,497	1,430	2,777	2,623
Costs of products sales	392	361	739	726
Costs of services sales	415	393	778	718
Costs of sales	807	754	1,517	1,444
Gross margin	690	676	1,260	1,179
Selling, general and administrative expenses	242	240	475	475
Research and development expenditures	138	138	273	274
Other charges	53	74	79	107
Operating earnings	257	224	433	323
Other income (expense):
Interest expense, net	(51)	(54)	(102)	(103)
Gains (losses) on sales of investments and businesses, net	(1)	1	2	(20)
Other	0	(4)	(9)	(11)
Total other expense	(52)	(57)	(109)	(134)
Net earnings before income taxes	205	167	324	189
Income tax expense	73	59	114	64
Net earnings	132	108	210	125
Less: Earnings attributable to noncontrolling interests	1	1	2	1
Net earnings attributable to Motorola Solutions, Inc.	$ 131	$ 107	$ 208	$ 124
Earnings per common share:
Basic (in US$ per share)	$ 0.80	$ 0.62	$ 1.27	$ 0.72
Diluted (in US$ per share)	$ 0.78	$ 0.61	$ 1.23	$ 0.71
Weighted average common shares outstanding:
Basic (in shares)	163.1	171.9	163.7	173.0
Diluted (in shares)	169.0	174.8	169.5	175.7
Dividends declared per share (in US$ per share)	$ 0.47	$ 0.41	$ 0.94	$ 0.82