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Fair Value of Financial Instruments and Risk Management (Sale of Receivables - Third-party Financial Institutions) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Fair Value Disclosures [Abstract]
Sale of receivables	$ 553
Settlement of receivables	(434)
Cash collected, not yet remitted	0
Outstanding balances sold to financial institutions	$ 119

X

- Definition

Transfer Of Financial Assets Accounted For As Sales, Cash Collection, Not Yet Remitted Derecognized

+ References

No definition available.

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X

- Definition

Transfer Of Financial Assets Accounted For As Sales, Net Amount Derecognized

+ References

No definition available.

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- References

No definition available.

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X

- Definition

Amount of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction, at the date of derecognition.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719

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- Definition

Amount, before counterparty netting, of cash proceeds received in transfers of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719

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