Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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-Topic 210
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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Long-Term Debt (1.625% Senior Notes due 2029) (Details) - Senior Notes [Member] € in Millions, $ in Millions	Dec. 31, 2020 USD ($)	Jun. 12, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jul. 17, 2019 USD ($)	Jul. 17, 2019 EUR (€)
1.625% Senior Notes Due 2029
Debt Instrument [Line Items]
Debt Instrument, Face Amount \| €					€ 700
Long-term Debt	$ 849		$ 774	$ 779
3.375 Senior Notes Due 2030
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 300
Long-term Debt	$ 296		$ 0