Other investments (Tables)

9 Months Ended

Sep. 30, 2016

Investments, All Other Investments [Abstract]

Schedule of other investments

Other investments are classified as available-for-sale and are shown in our Consolidated Balance Sheets as follows (in millions).

	Cost				Fair Value
	September 30,  2016		December 31,  2015		September 30,  2016		December 31,  2015
Insurance and other	$	9,970	$	9,970	$	15,415	$	15,998
Finance and financial products		1,000		3,052		2,078		5,719
	$	10,970	$	13,022	$	17,493	$	21,717