Income Tax - Income Tax Disclosure Table (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Disclosure Income Tax Income Tax Disclosure Table Detail [Line Items]
United States	$ 625	$ 510	$ 1,149	$ 931
Outside United States	1,702	2,163	3,254	3,360
Income (loss) from continuing operations before income taxes and minority interest, Total	$ 2,327	$ 2,673	$ 4,403	$ 4,291