Financial Data Resulting from Transactions with Related Parties, Balance Sheet Data (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Current assets
Accounts and notes receivable, net	$ 1,100	[1]	$ 1,081	[1]
Other	109	[1]	27	[1]
Contract acquisition costs and other	1,274		1,127
Equity and cost method investments	224	[1]	222	[1]
Deferred taxes, net	803		878
Other noncurrent assets	270	[1]	332	[1]
Current liabilities
Accrued expenses and other	(655)	[1]	(629)	[1]
Other noncurrent liabilities	(891)	[1]	(912)	[1]
Related Party Transactions
Current assets
Accounts and notes receivable, net	26		22
Other	1		0
Contract acquisition costs and other	20		20
Equity and cost method investments	210		207
Deferred taxes, net	13		16
Other noncurrent assets	19		16
Current liabilities
Accounts payable	(10)		(4)
Accrued expenses and other	(20)		(9)
Other noncurrent liabilities	$ (3)		$ (2)

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