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Debt And Liquidity (2018 Term Loan Facility) (Details) - 2018 Term Loan Facility - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2022 | Feb. 28, 2021 | Feb. 28, 2018
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 2,250,000,000 |  | $ 1,500,000,000
Equity Interest Pledge | 65.00% |  |
Debt Instrument, Annual Amortization Rate, Amount | $ 112,500,000 |  |
Repayment Of Excess Cashflow Percentage | 75.00% |  |
Ratio of Indebtedness to Net Capital | 4.00 |  |
Contingent Event One |  |  |
Debt Instrument [Line Items] |  |  |
Repayment Of Excess Cashflow Percentage | 50.00% |  |
Contingent Event Two |  |  |
Debt Instrument [Line Items] |  |  |
Repayment Of Excess Cashflow Percentage | 0.00% |  |
Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Variable Rate | 0.50% | 1.00% |
Minimum | Contingent Event One |  |  |
Debt Instrument [Line Items] |  |  |
Ratio of Indebtedness to Net Capital | 1.25 |  |
Maximum | Contingent Event One |  |  |
Debt Instrument [Line Items] |  |  |
Ratio of Indebtedness to Net Capital | 1.75 |  |
Adjusted LIBO Rate |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 3.00% |  |
Debt Instrument, Basis Spread on Variable Rate, Increase (Decrease) | (0.50%) |  |
Debt Instrument, Basis Spread on Variable Rate, Decrease Upon Achievement Of Specific Credit Ratings | 0.25% |  |
ABR |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.00% |  |

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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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