NET EARNINGS PER SHARE AND SHARE REPURCHASES Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Feb. 07, 2019
Earnings (loss) per share, basic and diluted	$ (0.39)	$ 0.35
Stock repurchase program, authorized amount			$ 500
Shares repurchased during period	2,348,635
Payments for repurchase of common stock (including unsettled repurchases)	$ 60
Stock repurchase program, remaining authorized repurchase amount	440
Unsettled share repurchases	$ 0

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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