Financial Data Resulting from Transactions with Related Parties, Balance Sheet Data (Detail) - USD ($) $ in Millions		Dec. 31, 2015	Dec. 31, 2014
Current assets
Accounts and notes receivable, net	[1]	$ 1,103	$ 1,100
Other	[1]	30	109
Contract acquisition costs and other		1,322	1,274
Equity and cost method investments	[1]	165	224
Deferred taxes, net		672	819
Other noncurrent assets	[1]	223	260
Current liabilities
Accrued expenses and other	[1]	(527)	(633)
Other noncurrent liabilities	[1]	(1,010)	(891)
Related Party Transactions
Current assets
Accounts and notes receivable, net		29	26
Other		1	1
Contract acquisition costs and other		30	20
Equity and cost method investments		159	210
Deferred taxes, net		(4)	13
Other noncurrent assets		17	19
Current liabilities
Accounts payable		(10)	(10)
Accrued expenses and other		(12)	(20)
Other noncurrent liabilities		$ (3)	$ (3)

[1] See Footnote No. 17, “Related Party Transactions,” to our Consolidated Financial Statements for disclosure of related party amounts.