Share Repurchase Plan (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Schedule of Share Repurchases Under Share Repurchase Plan

Repurchases under this program were as follows:

	2015		2014		2013		To Date
	(In millions, except cost per share)
Total cost of shares repurchased	$	91	$	3,722	$	1,538	$	5,351
Total number of shares repurchased		1.45		43.35		19.31		64.11
Average cost per share (including transaction fees)	$	62.76	$	85.83	$	79.65	$	83.45