Maximum Percentage of Shares Purchased from Annual Compensation.

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- Definition

Number of peer groups.

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- Definition

Number of Performance-Based Programs

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- Definition

Percentage Of Target Amount Granted Maximum

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- Definition

Percentage Of Target Amount Granted Minimum

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- Definition

Performance Based Long Term Incentive Program Weighted Percentage

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- Definition

Rate of Discount given to Employees.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Shares Earned Maximum

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No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Shares Earned Minimum

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No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
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-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Discount rate from fair value on purchase date that participants pay for shares.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

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).

+ References

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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.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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- Definition

Percentage of vesting of share-based compensation awards.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of share options (or share units) exercised during the current period.

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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(29))
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Share-Based Compensation (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2017 shares	Dec. 31, 2016 USD ($) program $ / shares peer_group shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) shares	Dec. 30, 2016 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount from market price		15.00%
Common stock shares reserved for future issuance (in shares)		6,700,000
Net cash proceeds from the exercise of stock options \| $		$ 41	$ 18	$ 32
Stock options exercised in period (in shares)		1,219,820	682,054	1,578,050
Share Price (in dollars per share) \| $ / shares					$ 67.12
Stock options, exercisable (in shares)		1,400,000	2,600,000
Weighted-average exercise price (in dollars per share) \| $ / shares			$ 27.74
Total pre-tax intrinsic value of stock options exercised \| $		$ 40	$ 17	$ 33
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost \| $		$ 52
Weighted-average period unrecognized compensation cost is expected to be recognized, in years		1 year 8 months 15 days
Number of Awards, Granted (in shares)		724,200	823,950	1,196,441
Restricted stock \| Second Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		25.00%
Restricted stock \| Third Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		25.00%
Restricted stock \| Fourth Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		50.00%
PSUs \| One Year Performance Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost \| $		$ 10
Weighted-average period unrecognized compensation cost is expected to be recognized, in years		1 year 5 months 2 days
Vesting period		1 year
Percentage of target amount granted, minimum		0.00%
Percentage of target amount granted, maximum		150.00%
Number of Awards, Granted (in shares)		242,642	206,199	328,791
PSUs \| Three Year Performance Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost \| $		$ 20
Weighted-average period unrecognized compensation cost is expected to be recognized, in years		1 year 3 months 27 days
Vesting period		3 years
Number of Awards, Granted (in shares)		761,501	649,626	553,846
Number of peer groups \| peer_group		2
Performance-based long-term incentive program weighted percentage		50.00%
Minimum payout		0.00%
Maximum payout		200.00%
Share Price (in dollars per share) \| $ / shares		$ 66.36	$ 50.97
PSUs, Negative TSR \| Three Year Performance Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum payout		100.00%
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Stock option life		10 years
Stock option awards granted (in shares)		0	0	0
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance (in shares)		2,300,000
Maximum percentage of shares purchased from annual compensation		10.00%
Discount given to employees		15.00%
Scenario, Forecast \| PSUs \| One Year Performance Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards, Granted (in shares)	56,533
Scenario, Forecast \| PSUs \| Three Year Performance Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards, Granted (in shares)	538,892
Officer \| PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance-based programs \| program		2