Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax, Beginning Balance	$ 21	$ 54	$ 46	$ 16
Other comprehensive income (loss) before reclassifications	(12)	(80)	(37)	(40)
Amounts reclassified to net earnings from accumulated other comprehensive income	(3)	(3)	(3)	(5)
Other comprehensive loss	(15)	(83)	(40)	(45)
Accumulated other comprehensive income (loss), net of tax, Ending Balance	6	(29)	6	(29)
Unrealized gain (loss) on available-for-sale securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax, Beginning Balance	19	18	20	18
Other comprehensive income (loss) before reclassifications	2	4	1	6
Amounts reclassified to net earnings from accumulated other comprehensive income	(3)	(3)	(3)	(5)
Other comprehensive loss	(1)	1	(2)	1
Accumulated other comprehensive income (loss), net of tax, Ending Balance	18	19	18	19
Unrealized gain (loss) on derivative instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax, Beginning Balance	3		0
Other comprehensive income (loss) before reclassifications	0		3
Amounts reclassified to net earnings from accumulated other comprehensive income	0		0
Other comprehensive loss	0		3
Accumulated other comprehensive income (loss), net of tax, Ending Balance	3		3
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax, Beginning Balance	(1)	36	26	(2)
Other comprehensive income (loss) before reclassifications	(14)	(84)	(41)	(46)
Amounts reclassified to net earnings from accumulated other comprehensive income	0	0	0	0
Other comprehensive loss	(14)	(84)	(41)	(46)
Accumulated other comprehensive income (loss), net of tax, Ending Balance	$ (15)	$ (48)	$ (15)	$ (48)