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Cash-based Liability awards

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No definition available.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Share-Based Compensation - Performance-Based and Restricted Stock Awards (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Additional Company Information [Abstract]
Vesting period	3 years
Minimum
Additional Company Information [Abstract]
Vesting period	1 year
PX Performance Based Awards
Additional Company Information [Abstract]
Vesting period	3 years
Awards to be settled in cash (in shares)	7,000
Unrecognized compensation expense	$ 23
Number of Shares (000’s)
Non-vested at beginning of period (in shares)	0
Granted (in shares)	262,000
Vested (in shares)	0
Cancelled and forfeited (in shares)	(16,000)
Non-vested at end of period (in shares)	246,000	0
Average Grant Date Fair Value
Non-vested at beginning of period (in dollars per share)	$ 0
Granted (in dollars per share)	184.29
Vested (in dollars per share)	0
Cancelled and forfeited (in dollars per share)	184.26
Non-vested at end of period (in dollars per share)	$ 184.29	$ 0
Restricted Stock
Additional Company Information [Abstract]
Awards to be settled in cash (in shares)	11,000
Unrecognized compensation expense	$ 21
Number of Shares (000’s)
Non-vested at beginning of period (in shares)	1,071,000
Granted (in shares)	161,072
Vested (in shares)	(330,000)
Cancelled and forfeited (in shares)	(18,000)
Non-vested at end of period (in shares)	884,000	1,071,000
Average Grant Date Fair Value
Non-vested at beginning of period (in dollars per share)	$ 118.84
Granted (in dollars per share)	165.04	$ 144.86	$ 111.95
Vested (in dollars per share)	107.10
Cancelled and forfeited (in dollars per share)	146.32
Non-vested at end of period (in dollars per share)	129.43	118.84
Performance Shares TSR
Average Grant Date Fair Value
Granted (in dollars per share)	215.85	$ 0	124.12
Performance Shares ROC
Average Grant Date Fair Value
Granted (in dollars per share)	$ 168.47		$ 109.68