Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Apr. 02, 2016	Apr. 04, 2015
Income Statement [Abstract]
Net sales from products	$ 702	$ 758
Net sales from services	491	465
Net sales	1,193	1,223
Costs of products sales	366	359
Costs of services sales	325	316
Costs of sales	691	675
Gross margin	502	548
Selling, general and administrative expenses	234	256
Research and development expenditures	135	159
Other charges	33	14
Operating earnings	100	119
Other income (expense):
Interest expense, net	(49)	(40)
Gains (losses) on sales of investments and businesses, net	(21)	46
Other	(8)	3
Total other income (expense)	(78)	9
Earnings from continuing operations before income taxes	22	128
Income tax expense	5	40
Earnings from continuing operations	17	88
Loss from discontinued operations, net of tax	0	(13)
Net earnings	17	75
Less: Earnings attributable to noncontrolling interests	0	1
Net earnings attributable to Motorola Solutions, Inc.	17	74
Earnings from continuing operations, net of tax	17	87
Loss from discontinued operations, net of tax	$ 0	$ (13)
Basic:
Continuing operations (US$ per share)	$ 0.10	$ 0.40
Discontinued operations (US$ per share)	0.00	(0.06)
Basic (US$ per share):	0.10	0.34
Diluted:
Continuing operations (US$ per share)	0.10	0.40
Discontinued operations (US$ per share)	0.00	(0.06)
Diluted (US$ per share):	$ 0.10	$ 0.34
Weighted average common shares outstanding:
Basic (shares)	174.5	215.3
Diluted (shares)	177.0	217.8
Dividends declared per share (US$ per share)	$ 0.41	$ 0.34