Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Income Statement [Abstract]
Net sales from products	$ 801	$ 867	$ 1,503	$ 1,626
Net sales from services	629	501	1,120	965
Net sales	1,430	1,368	2,623	2,591
Costs of products sales	361	385	726	745
Costs of services sales	393	335	718	650
Costs of sales	754	720	1,444	1,395
Gross margin	676	648	1,179	1,196
Selling, general and administrative expenses	240	254	475	510
Research and development expenditures	138	156	274	315
Other charges (income)	74	(16)	107	(2)
Operating earnings	224	254	323	373
Other income (expense):
Interest expense, net	(54)	(39)	(103)	(79)
Gains (losses) on sales of investments and businesses, net	1	4	(20)	50
Other	(4)	(4)	(11)	(1)
Total other expense	(57)	(39)	(134)	(30)
Earnings from continuing operations before income taxes	167	215	189	343
Income tax expense	59	64	64	104
Earnings from continuing operations	108	151	125	239
Loss from discontinued operations, net of tax	0	(8)	0	(21)
Net earnings	108	143	125	218
Less: Earnings attributable to noncontrolling interests	1	1	1	1
Net earnings attributable to Motorola Solutions, Inc.	107	142	124	217
Earnings from continuing operations, net of tax	107	150	124	238
Loss from discontinued operations, net of tax	$ 0	$ (8)	$ 0	$ (21)
Basic:
Continuing operations (US$ per share)	$ 0.62	$ 0.72	$ 0.72	$ 1.12
Discontinued operations (US$ per share)	0.00	(0.04)	0.00	(0.09)
Basic (US$ per share):	0.62	0.68	0.72	1.03
Diluted:
Continuing operations (US$ per share)	0.61	0.72	0.71	1.11
Discontinued operations (US$ per share)	0.00	(0.04)	0.00	(0.10)
Diluted (US$ per share):	$ 0.61	$ 0.68	$ 0.71	$ 1.01
Weighted average common shares outstanding:
Basic (shares)	171.9	208.0	173.0	211.7
Diluted (shares)	174.8	209.5	175.7	213.8
Dividends declared per share (US$ per share)	$ 0.41	$ 0.34	$ 0.82	$ 0.68