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Share Repurchase Programs	12 Months Ended
Share Repurchase Programs	Dec. 31, 2019
Share Repurchase Programs [Abstract]
SHARE REPURCHASE PROGRAMS	SHARE REPURCHASE PROGRAMS In December 2019, our Board of Directors authorized a new share repurchase program intended to mitigate the dilutive impact of shares issued under our employee stock plans (the 2019 program). Under the 2019 program, management is authorized to repurchase up to 1.5 million shares of common stock, the sum of which will not exceed the number of shares issued to employees under our employee stock plans from December 1, 2019 to December 11, 2021. Share repurchases of common stock are made periodically in open-market transactions and are subject to market conditions, legal requirements, and other factors. Management may establish prearranged written plans under Rule 10b5-1 of the Securities Exchange Act of 1934 as part of the 2019 program, which allow for share repurchases during our quarterly blackout periods as set forth in the trading plan. As of December 31, 2019, we have not repurchased any shares under the 2019 program. During 2019, 2018 and 2017, we repurchased 0.5 million, 0.4 million and 1.1 million shares under previous share repurchase programs for $28 million, $31 million and $78 million, respectively.