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Debt - Narrative (Details) - USD ($)	1 Months Ended
	May 31, 2021	Sep. 30, 2021	Dec. 31, 2020
U.S. commercial paper notes
Debt Instrument [Line Items]
Debt maturities (in days)	397 days
Outstanding borrowings		$ 1,377,000,000	$ 0
Weighted average interest rate		0.189%
Senior Notes | 4.750% senior notes due June 2021
Debt Instrument [Line Items]
Outstanding borrowings		$ 0	400,000,000
Debt instrument, interest rate		4.75%
Revolving credit facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 3,500,000,000
Outstanding borrowings		$ 107,000,000	$ 22,000,000

X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Weighted average interest rate of debt outstanding.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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