Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Contract Balances (Details)

v3.19.3
Segment Information - Contract Balances (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Jan. 01, 2019
Dec. 31, 2018
Jan. 01, 2018
Segment Information              
Accounts receivable $ 212   $ 212     $ 205  
Contract assets 6   6     7  
Total 218   218     $ 212  
Deferred revenue         $ 63   $ 59
Contract with customer revenue recognized $ 10 $ 8 $ 56 $ 53