Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating
Net earnings attributable to Motorola Solutions, Inc.	$ 881	$ 1,158	$ 633
Earnings (loss) attributable to noncontrolling interests	0	(6)	17
Net earnings	881	1,152	650
Earnings from discontinued operations	3	411	389
Earnings from continuing operations	878	741	261
Adjustments to reconcile earnings from continuing operations to net cash provided by (used by) operating activities:
Depreciation and amortization	208	366	353
Non-cash other charges (income)	11	34	(74)
Share-based compensation expense	184	168	144
Gain on sales of investments and businesses, net	(39)	(23)	(49)
Loss from the extinguishment of long-term debt	6	81	12
Deferred income taxes	242	63	384
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable	81	(250)	(83)
Inventories	(3)	(14)	(111)
Other current assets	(118)	61	(48)
Accounts payable and accrued liabilities	(162)	(191)	333
Other assets and liabilities	(220)	(188)	(319)
Net cash provided by operating activities	1,068	848	803
Investing
Acquisitions and investments, net	(109)	(32)	(23)
Proceeds from (used for) sales of investments and businesses, net	(38)	1,124	264
Capital expenditures	(187)	(186)	(192)
Proceeds from sales of property, plant and equipment	56	6	27
Proceeds from sales of Sigma Fund investments, net	1,075	1,508	453
Proceeds from sales (purchases) of short-term investments, net	0	6	(6)
Net cash provided by investing activities	797	2,426	523
Financing
Repayment of short-term borrowings, net	0	0	(5)
Repayment of debt	(413)	(1,219)	(1,011)
Proceeds from issuance of debt	747	0	0
Contributions to Motorola Mobility	(73)	(3,425)	0
Repurchase of common stock	(2,438)	(1,110)	0
Excess tax benefits from share-based compensation	20	42	0
Payment of dividends	(270)	(72)	0
Distributions (to) from discontinued operations	(11)	64	797
Net cash used for financing activities	(2,305)	(5,528)	(40)
Discontinued Operations
Net cash provided by operating activities from discontinued operations	2	26	1,169
Net cash used for investing activities from discontinued operations	0	(8)	(343)
Net cash provided by (used for) financing activities from discontinued operations	11	(64)	(797)
Effect of exchange rate changes on cash and cash equivalents from discontinued operations	(13)	46	(29)
Net cash provided by (used for) discontinued operations	0	0	0
Effect of exchange rate changes on cash and cash equivalents from continuing operations	27	(73)	53
Net increase (decrease) in cash and cash equivalents	(413)	(2,327)	1,339
Cash and cash equivalents, beginning of year	1,881	4,208	2,869
Cash and cash equivalents, end of year	1,468	1,881	4,208
Cash paid during the period for:
Interest expense	109	166	240
Income taxes, net of refunds	$ 127	$ 107	$ 259