Face (par) amount of debt instrument at time of issuance.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt - Narrative (Details) $ in Millions	Sep. 30, 2020 EUR (€)	Sep. 30, 2020 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 USD ($)
Fair Value, Inputs, Level 2
Debt Instrument [Line Items]
Long-term debt, fair value \| $		$ 8,548		$ 8,410
Senior Secured Borrowings \| Euro at EURIBOR Plus One Point Five Percentage Due Two Thousand and Twenty Four [Member]
Debt Instrument [Line Items]
Debt, face amount \| €	€ 442,000,000		€ 450,000,000