Acquisitions (Details) - IMX $ in Millions	Aug. 15, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Acquisition of IMX preliminary purchase consideration	$ 95
Cash consideration paid to IMX	90
Payment to extinguish existing term loans and credit facility balances	4
Goodwill tax deductible amount	51
Intangible assets acquired	42
Customer Relationships
Restructuring Cost and Reserve [Line Items]
Intangible assets acquired	$ 41
Amortization period	10 years