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Fair Value Measurements (Details 2) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Mar. 31, 2022
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |
Payments for Strategic Venture Compliance | $ 5 | $ 5 | $ 5 | $ 5 | $ 5 | $ 5 |
Estimate of Fair Value Measurement |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |
Fair value of long-term debt, including current portion | 4,113 |  |  |  |  |  | $ 3,781
Reported Value Measurement |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |
Fair value of long-term debt, including current portion | 3,465 |  |  |  |  |  | 3,462
Recurring basis |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |
Cash equivalents | 1,507 |  |  |  |  |  | 2,410
Nonqualified employee benefit trusts | 20 |  |  |  |  |  | 19
Derivative Liability | 47 |  |  |  |  |  |
Embedded derivative liability | (15) |  |  |  |  |  | (15)
Derivative Asset | 16 |  |  |  |  |  | 3
Recurring basis | Quoted Prices in Active Markets (Level 1) |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |
Cash equivalents | 1,507 |  |  |  |  |  | 2,410
Nonqualified employee benefit trusts | 20 |  |  |  |  |  | 19
Derivative Liability | 0 |  |  |  |  |  |
Embedded derivative liability | 0 |  |  |  |  |  | 0
Derivative Asset | 0 |  |  |  |  |  | 0
Recurring basis | Significant Other Observable Inputs (Level 2) |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |
Cash equivalents | 0 |  |  |  |  |  | 0
Nonqualified employee benefit trusts | 0 |  |  |  |  |  | 0
Derivative Liability | 47 |  |  |  |  |  |
Embedded derivative liability | (15) |  |  |  |  |  | (15)
Derivative Asset | 16 |  |  |  |  |  | 3
Recurring basis | Fair Value, Inputs (Level 3) |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |
Cash equivalents | 0 |  |  |  |  |  | 0
Nonqualified employee benefit trusts | 0 |  |  |  |  |  | 0
Derivative Liability | 0 |  |  |  |  |  |
Embedded derivative liability | 0 |  |  |  |  |  | 0
Derivative Asset | $ 0 |  |  |  |  |  | $ 0

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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