Debt Instrument, Redemption Price, Percentage, Change Of Control Event

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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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.

+ Details

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Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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Balance Type:	debit
Period Type:	duration

- 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

Name:	us-gaap_LongTermDebtFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Debt - Senior Notes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Debt - Senior Notes (Details) - USD ($) $ in Millions	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jul. 31, 2014
Interest Rate Swap \| Designated as Hedging Instrument \| Fair Value Hedging
Debt Instrument [Line Items]
Derivative liability	$ 2,400		$ 2,400		$ 2,400
Senior Notes
Debt Instrument [Line Items]
Redemption price, percentage, in the event of change of control			101.00%
Interest expense	79	$ 74	$ 160	$ 142
Fair value of long-term debt	$ 9,100	$ 10,100	9,100	$ 10,100
Senior Notes \| 2.500% Senior notes due 2018
Debt Instrument [Line Items]
Debt repaid			$ 750
Coupon rate, fixed rate notes	2.50%		2.50%
Senior Notes \| 3.800% Senior notes due 2022
Debt Instrument [Line Items]
Coupon rate, fixed rate notes	3.80%		3.80%
Senior Notes \| 6.000% Senior notes due 2056
Debt Instrument [Line Items]
Coupon rate, fixed rate notes	6.00%		6.00%
Redemption price, percentage			100.00%
Senior Notes \| 2.150% Senior notes due 2020
Debt Instrument [Line Items]
Coupon rate, fixed rate notes	2.15%		2.15%
Senior Notes \| 2.750% Senior notes due 2023
Debt Instrument [Line Items]
Coupon rate, fixed rate notes	2.75%		2.75%
Senior Notes \| 3.600% Senior notes due 2027
Debt Instrument [Line Items]
Coupon rate, fixed rate notes	3.60%		3.60%