XML 27 R59.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Stock Plans and Share-Based Compensation - Intrinsic Value and Cash Received on Exercises (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
Share-based Payment Arrangement [Abstract]  
Intrinsic value of stock options exercised $ 87
Cash received from option exercises $ 45