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Impairment, Restructuring Charges and Other Related Closure Costs - Summary of Impairment, Restructuring Charges and Other Related Closure Costs (Detail) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
St-Ericsson Restructuring Plan [Member]
Dec. 31, 2012
St-Ericsson Restructuring Plan [Member]
Dec. 31, 2011
St-Ericsson Restructuring Plan [Member]
Dec. 31, 2013
St-Ericsson Exit [Member]
Dec. 31, 2012
St-Ericsson Exit [Member]
Dec. 31, 2013
Digital Restructuring Plan [Member]
Dec. 31, 2012
Digital Restructuring Plan [Member]
Dec. 31, 2013
$600-650 Million Net Opex Plan [Member]
Dec. 31, 2013
Manufacturing Consolidation [Member]
Sep. 30, 2013
Annual Impairment Test [Member]
Dec. 31, 2013
Annual Impairment Test [Member]
Dec. 31, 2012
Annual Impairment Test [Member]
Dec. 31, 2013
Assets Held-for-sale Impairment [Member]
Dec. 31, 2013
Other Restructuring Initiatives [Member]
Dec. 31, 2012
Other Restructuring Initiatives [Member]
Dec. 31, 2011
Other Restructuring Initiatives [Member]
Dec. 31, 2012
Manufacturing Restructuring Plan [Member]
Dec. 31, 2011
Manufacturing Restructuring Plan [Member]
Dec. 31, 2012
St-Ericsson Cost Savings Plan [Member]
Dec. 31, 2011
St-Ericsson Cost Savings Plan [Member]
Dec. 31, 2012
St-Ericsson April 2012 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]                                                  
Impairment $ (69) $ (109) $ (1,268) $ (4)       $ (1) $ (17) $ (544) $ (2) $ (7)    $ (29) $ (56) $ (56) $ (694) $ (5)          $ (21) $ (3)       $ (2)
Restructuring charges   (178) (84) (43) (6) (1) (3) (69)    (1) (13) (88) (8)            (6)    (1)    (13) (10) (26) (60)
Other related closure costs   (5) (24) (28) (3)    (3)       (2)                        (8) (4) (2) (21) (10)    (4)
Total impairment, restructuring charges and other related closure costs   $ (292) $ (1,376) $ (75) $ (9) $ (1) $ (7) $ (86) $ (544) $ (5) $ (20) $ (88) $ (37)   $ (56) $ (694) $ (5) $ (6) $ (8) $ (5) $ (23) $ (37) $ (20) $ (26) $ (66)