Debt (Term Loan under the Senior Credit Agreement) (Narrative) (Details) - USD ($)	3 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 12,720,000,000	$ 12,396,000,000
2018 Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument, principal amount	2,310,000,000	$ 2,316,000,000
Repayment of term loans	$ 6,000,000.0

Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant