Share-Based Compensation Plans And Other Incentive Plans (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended				12 Months Ended																		0 Months Ended		12 Months Ended			0 Months Ended	12 Months Ended
	Jan. 04, 2011	Dec. 31, 2011 months years	Dec. 31, 2010	Dec. 31, 2009	Jun. 12, 2009 years	Dec. 31, 2011 October 1 Through March 31 [Member]	Dec. 31, 2010 October 1 Through March 31 [Member]	Dec. 31, 2009 October 1 Through March 31 [Member]	Dec. 31, 2011 April 1 Through September 30 [Member]	Dec. 31, 2010 April 1 Through September 30 [Member]	Dec. 31, 2009 April 1 Through September 30 [Member]	Dec. 31, 2011 Stock Option Awards Contractual Life Minimum [Member] years	Dec. 31, 2011 Stock Option Awards Contractual Life Maximum [Member] years	Dec. 31, 2011 Vesting Period Minimum (In Years) [Member] years	Dec. 31, 2011 Vesting period Maximum (In Years) [Member] years	Dec. 31, 2011 Estimated Option Fair Value Forfeiture Rate Minimum [Member]	Dec. 31, 2011 Estimated Option Fair Value Forfeiture Rate Maximum [Member]	Dec. 31, 2011 Motorola Incentive Plan [Member]	Dec. 31, 2010 Motorola Incentive Plan [Member]	Dec. 31, 2009 Motorola Incentive Plan [Member]	Dec. 31, 2011 Long-Range Incentive Plan [Member]	Dec. 31, 2010 Long-Range Incentive Plan [Member]	Dec. 31, 2009 Long-Range Incentive Plan [Member]	Apr. 29, 2011 Restricted Stock And Restricted Stock Units [Member]	Jan. 04, 2011 Restricted Stock And Restricted Stock Units [Member]	Dec. 31, 2011 Restricted Stock And Restricted Stock Units [Member] years	Dec. 31, 2010 Restricted Stock And Restricted Stock Units [Member]	Dec. 31, 2009 Restricted Stock And Restricted Stock Units [Member]	Jan. 04, 2011 Stock Options [Member]	Dec. 31, 2011 Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option exercise price not less than value of common stock		100.00%
Stock option awards contractual life												5	10
Vesting period														2	4
Stock options and stock appreciation rights exercisable condition in case of change of control (in months)		24
ESPP common stock payroll deductions, maximum percentage		10.00%
Maximum limit for purchase of stock under ESPP		$ 25,000
Purchase under ESPP lower than fair market value, percentage		85.00%
Shares purchased by employees		2,200,000	2,700,000	4,200,000
Purchase price paid by employees						$ 30.56	$ 41.79	$ 25.20	$ 35.61	$ 42.00	$ 25.76
Weighted-average estimated fair value of employee stock options granted		$ 13.25	$ 21.43	$ 19.43
Estimated option fair value forfeiture rate																13.00%	50.00%
Unrecognized compensation expense, net of estimated forfeitures		36,000,000																								211,000,000
Unrecognized compensation expense, period for recognition, years		2																								2
Cash received from stock option exercises and the employee stock purchase plan		192,000,000	179,000,000	116,000,000
Total intrinsic value of options exercised		73,000,000	17,000,000	1,000,000
Aggregate intrinsic value for options outstanding		146,000,000
Aggregate intrinsic value for options exercisable		100,000,000
Stock price market value		$ 46.29
Stock options subject to cancellation																													8,000,000
Shares available for future share-based award grants		23,700,000	6,600,000
Weighted average contractual life for options outstanding (in years)		6
Weighted average contractual life for options exercisable (in years)		4
Stock options prior grant date		June 1, 2007
Stock options equal to or greater than exercise price		$ 84.00
Options tendered					14,000,000
Options exchange for new options					6,000,000
New options exercise price					$ 47.11
Vesting Period (in years)					2
Stock options offering date		June 12, 2009
Unvested RSUs cancelled		6,127,000	867,000	1,033,000																				1,400,000	3,800,000
Reverse stock split ratio	0.14285																													0.238089
Total fair value of RS and RSU shares vested																										146,000,000	114,000,000	44,000,000
Aggregate fair value of outstanding RSUs																										416,000,000
Share-based compensation expense		$ 168,000,000	$ 144,000,000	$ 137,000,000														$ 203,000,000	$ 201,000,000	$ 109,000,000	$ 3,000,000	$ 11,000,000	$ 5,000,000