Debt Extinguishment Fees

No definition available.

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- Definition

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

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- Definition

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

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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

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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Balance Type:	debit
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs.

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- Definition

Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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- Definition

The net cash outflow or inflow from derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Period Type:	duration

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Period Type:	duration

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Borrowings - Narrative (Details) - USD ($)		1 Months Ended		3 Months Ended		9 Months Ended
Borrowings - Narrative (Details) - USD ($)	Aug. 15, 2019	Aug. 31, 2019	Jul. 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt Instrument [Line Items]
Proceeds from debt	$ 3,500,000,000
Proceeds from derivative instruments			$ 25,000,000			$ 25,000,000	$ (446,000,000)
Net cash flow hedges			$ 18,000,000
Premium paid in excess of debt principal		$ 76,000,000
Debt extinguishment fees		8,000,000
Gain on write off of unamortized deferred financing premiums		5,000,000
Loss on early extinguishment of debt		$ 79,000,000		$ 79,000,000	$ 0	$ 79,000,000	$ 0
Senior Notes \| 2.625% senior notes due August 2024
Debt Instrument [Line Items]
Face amount of debt	$ 1,000,000,000.0
Debt interest rate	2.625%			2.265%		2.265%
Senior Notes \| 3% senior notes due August 2026
Debt Instrument [Line Items]
Face amount of debt	$ 750,000,000
Debt interest rate	3.00%			3.00%		3.00%
Senior Notes \| 3.25% senior notes due August 2029
Debt Instrument [Line Items]
Face amount of debt	$ 1,750,000,000
Debt interest rate	3.25%			3.25%		3.25%
Senior Notes \| 3.125% senior notes due March 2020
Debt Instrument [Line Items]
Debt interest rate		3.125%		3.125%		3.125%
Aggregate principal of debt extinguished		$ 1,300,000,000
Senior Notes \| 4.125% senior notes due 2021
Debt Instrument [Line Items]
Debt interest rate		4.125%
Aggregate principal of debt extinguished		$ 328,000,000
Senior Notes \| Senior Notes Issued By Aetna, 4.125%, Due 2021
Debt Instrument [Line Items]
Debt interest rate		4.125%
Aggregate principal of debt extinguished		$ 297,000,000
Senior Notes \| 5.45% senior notes due June 2021
Debt Instrument [Line Items]
Debt interest rate		5.45%		5.45%		5.45%
Aggregate principal of debt extinguished		$ 413,000,000
Senior Notes \| 3.35% senior notes due March 2021
Debt Instrument [Line Items]
Debt interest rate		3.35%		3.35%		3.35%
Aggregate principal of debt extinguished		$ 962,000,000
Senior Notes \| 2.125% senior notes due June 2021
Debt Instrument [Line Items]
Debt interest rate				2.125%		2.125%
Senior Notes \| Outstanding senior notes
Debt Instrument [Line Items]
Aggregate principal of debt extinguished		4,000,000,000.0
Floating Rate Notes \| Floating rate notes due March 2020
Debt Instrument [Line Items]
Aggregate principal of debt extinguished		$ 723,000,000