XML 102 R87.htm IDEA: XBRL DOCUMENT v3.10.0.1
Shareholders' Equity - Share-based Compensation, Awards, Intrinsic Value, Cash Received and Tax Benefit (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total Intrinsic Value $ 20 $ 3 $ 1
Cash Received 0 0 0
Tax Benefit - RSU and PS awards 4 1 0
Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total Intrinsic Value 18 25 0
Cash Received 0 0 0
Tax Benefit - RSU and PS awards 4 10 0
Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total Intrinsic Value - Stock Options 2 3 3
Cash Received 2 6 9
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options $ 0 $ 1 $ 1