Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Accrued Liabilities, Current [Abstract]
Compensation and benefits	$ 94	$ 94
Accrued interest	86	74
Customer advances, deposits and funds held on behalf of customers	82	23
Contract liability	69	84
Taxes, other than income	42	36
Accrued licenses	28	26
Operating lease liabilities	26	26
Contingent acquisition consideration liabilities	11	7
Other	148	125
Total	$ 586	$ 495