SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for sales returns and price protection and other allowances
Valuation and qualifying accounts, reconciliation
Valuation and qualifying accounts, balance at the beginning of period	$ 379	$ 376	$ 323
Valuation and qualifying accounts, additions	114	212	174
Valuation and qualifying accounts, deductions	(154)	(209)	(121)
Valuation and qualifying accounts, balance at the end of period	339	379	376
Allowance for doubtful accounts
Valuation and qualifying accounts, reconciliation
Valuation and qualifying accounts, balance at the beginning of period	4	5	9
Valuation and qualifying accounts, additions	1	2	1
Valuation and qualifying accounts, deductions	(1)	(3)	(5)
Valuation and qualifying accounts, balance at the end of period	$ 4	$ 4	$ 5