Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Cash and Cash Equivalents
Restricted Cash and Cash Equivalents, Current	$ 15	$ 15
Accounts Receivable
net allowance for doubtful accounts	$ 1	$ 16
Common Stock
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
shares authorized	100	300,000,000
Common Stock, Shares, Issued	100	170,605,906
Shares, Outstanding		82,556,847
Treasury stock, shares	0	88,049,059

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