Long-lived assets estimated remaining useful life.

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- Definition

Summary of significant accounting policies.

+ References

No definition available.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685

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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019
Summary Of Significant Accounting Policies [Line Items]
Operating lease right-of-use assets	$ 294
Operating lease liabilities	311
ASU 2016-02 [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating lease right-of-use assets		$ 333
Operating lease liabilities		$ 349
Office Space [Member] \| ASU 2016-02 [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating lease right-of-use assets	$ (16)
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, useful life	20 years
Long-lived asset estimated remaining useful life	25 years
Maximum [Member] \| Equipment and Buildings [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful Life	25 years
Maximum [Member] \| Software Development [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful Life	7 years
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, useful life	5 years
Long-lived asset estimated remaining useful life	2 years
Minimum [Member] \| Equipment and Buildings [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful Life	15 years
Minimum [Member] \| Software Development [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful Life	5 years
Consolidated Subsidiaries [Member] \| Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Voting stock ownership percentage	50.00%
Consolidated Subsidiaries [Member] \| Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Voting stock ownership percentage	20.00%
Consolidated Subsidiaries [Member] \| Outside Shareholders [Member] \| Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Non controlling interests, ownership percentage by parent	100.00%