Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

NET EARNINGS PER SHARE AND SHARE REPURCHASES Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Nov. 08, 2015
Stock Repurchase Program, Authorized Amount						$ 2,500
Earnings per share, basic and diluted	$ 0.34	$ 0.17	$ 1.11	$ 0.41
Stock Repurchased During Period, Shares	8,583,244		8,585,844
Payments for Repurchase of Common Stock (including unsettled repurchases)	$ 290		$ 291
Stock Repurchase Program, Remaining Authorized Repurchase Amount	210		210
Unsettled Share Repurchases [Member]
Unsettled Share Repurchases	$ 18		$ 18		$ 0