Components of Special Charges (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Special Charges [Line Items]
Integration-related costs	$ 34	$ 70
Severance and benefits	14	14
(Gains) losses on sale of assets and other special (gains) losses, net	4	(3)
Additional costs associated with the temporarily grounded Boeing 787 aircraft		11
Special charges	52	92
Venezuela foreign exchange loss	21
Income tax benefit	(1)
Total operating and nonoperating special charges, net of income taxes	$ 72	$ 92