Accumulated Other Comprehensive Income (Loss)
 9 Months Ended
Sep. 24, 2016
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
The tables below summarize the changes in accumulated other comprehensive income (loss) by component:
 
Three Months Ended
 
September 24,
2016
 
September 26,
2015
 
Unrealized gains (losses) on available-for-sale securities
 
Unrealized gains (losses) on cash flow hedges
 
Total
 
Unrealized gains (losses) on available-for-sale securities
 
Unrealized gains (losses) on cash flow hedges
 
Total
 
(In millions)
Beginning balance
$
(2
)
 
$
(1
)
 
$
(3
)
 
$
1

 
$
(6
)
 
$
(5
)
Unrealized gains (losses) arising during the period
1

 
—

 
1

 
(3
)
 
(13
)
 
(16
)
Reclassification adjustment for (gains) losses realized and included in net income (loss)
—

 
(1
)
 
(1
)
 
—

 
6

 
6

Tax effect
—

 
—

 
—

 
—

 
—

 
—

Total other comprehensive income (loss)
1

 
(1
)
 
—

 
(3
)
 
(7
)
 
(10
)
Ending balance
$
(1
)
 
$
(2
)
 
$
(3
)
 
$
(2
)
 
$
(13
)
 
$
(15
)

 
Nine Months Ended
 
September 24,
2016
 
September 26,
2015
 
Unrealized gains (losses) on available-for-sale securities
 
Unrealized gains (losses) on cash flow hedges
 
Total
 
Unrealized gains (losses) on available-for-sale securities
 
Unrealized gains (losses) on cash flow hedges
 
Total
 
(In millions)
Beginning balance
$
(1
)
 
$
(7
)
 
$
(8
)
 
$
1

 
$
(6
)
 
$
(5
)
Unrealized gains (losses) arising during the period
(1
)
 
7

 
6

 
(3
)
 
(21
)
 
(24
)
Reclassification adjustment for (gains) losses realized and included in net income (loss)
—

 
1

 
1

 
—

 
14

 
14

Tax effect
1

 
(3
)
 
(2
)
 
—

 
—

 
—

Total other comprehensive income (loss)
—

 
5

 
5

 
(3
)
 
(7
)
 
(10
)
Ending balance
$
(1
)
 
$
(2
)
 
$
(3
)
 
$
(2
)
 
$
(13
)
 
$
(15
)