Condensed Consolidated Statements Of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Income Statement [Abstract]
Net sales from products	$ 1,444	$ 1,374
Net sales from services	512	460
Net sales	1,956	1,834
Cost of product sales	658	624
Cost of service sales	325	286
Costs of sales	983	910
Gross margin	973	924
Selling, general and administrative expenses	472	461
Research and development expenditures	254	239
Other charges	15	55
Operating earnings	232	169
Other income (expense):
Interest expense, net	(14)	(20)
Gains on sales of investments and businesses, net	17	18
Other	9	5
Total other income (expense)	12	3
Earnings from continuing operations before income taxes	244	172
Income tax expense (benefit)	85	(189)
Earnings from continuing operations	159	361
Earnings (loss) from discontinued operations, net of tax	(2)	130
Net earnings (loss)	157	491
Less: Loss attributable to noncontrolling interests	0	(6)
Net earnings (loss) attributable to Motorola Solutions, Inc.	157	497
Amounts attributable to Motorola Solutions, Inc. common shareholders:
Earnings from continuing operations, net of tax	159	367
Earnings (loss) from discontinued operations, net of tax	(2)	130
Net earnings (loss) attributable to Motorola Solutions, Inc.	$ 157	$ 497
Basic:
Continuing operations	$ 0.51	$ 1.09
Discontinued operations	$ (0.01)	$ 0.38
Earnings (loss) per common share	$ 0.50	$ 1.47
Diluted:
Continuing operations	$ 0.50	$ 1.07
Discontinued operations	$ (0.01)	$ 0.37
Earnings (loss) per common share	$ 0.49	$ 1.44
Weighted average common shares outstanding:
Basic	311.3	337.4
Diluted	317.7	344.2
Dividends paid per share	$ 0.22	$ 0