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Debt (Schedule Of Changes In Debt) (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2020 USD ($)
Debt Instrument [Line Items] |
Balance as of beginning-of-year | $ 6,367
Notes issued | 499
Repayment of notes | (300)
Unamortized adjustments from discontinued hedges | 263
Fair value hedge on interest rate swap agreement | (82)
Balance as of end-of-period | 6,748
LIBOR + 150 bps Term Loan Issued, Due 2022 [Member] |
Debt Instrument [Line Items] |
Notes issued | $ 500
LIBOR + 150 bps Term Loan Issued, Due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member] |
Debt Instrument [Line Items] |
Variable rate | 1.50%
6.25% Senior Notes, Due 2020 [Member] |
Debt Instrument [Line Items] |
Repayment of notes | $ (300)
Interest rate | 6.25%

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