v3.6.0.2

Share-based Compensation - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares	Dec. 31, 2016 € / shares	Dec. 31, 2015 € / shares
Long Term Incentive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized and available for awards | shares	3,000,000
Charges for plan	$ 331,000,000	$ 206,000,000	$ 123,000,000
Risk-free interest rate, minimum	0.80%	0.80%	0.80%
Risk-free interest rate, maximum	2.80%	2.80%	2.80%
Expected dividend payments	$ 0
Weighted average grant date fair value of stock options | $ / shares	$ 34.59	$ 34.05	$ 29.10
Intrinsic value of exercised options	$ 145,000,000	$ 112,000,000	$ 129,000,000
Amount received on stock options exercised	88,000,000	39,000,000	55,000,000
Unrecognized compensation cost	$ 56,000,000	$ 110,000,000
Weighted-average period for recognition of compensation cost	1 year 6 months	1 year 9 months 18 days
Long Term Incentive Plans [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	5 years 9 months 4 days
Volatility rate	40.00%
Long Term Incentive Plans [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	6 years 3 months
Volatility rate	50.00%
Long Term Incentive Plans [Member] | Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period for recognition of compensation cost	1 year 9 months 18 days	1 year 10 months 24 days
Unrecognized compensation cost	$ 12,000,000	$ 32,000,000
Fair value of vested shares	$ 147,000,000	$ 66,000,000	$ 70,000,000
Long Term Incentive Plans [Member] | Performance Share Units [Member] | Financial Performance Conditions [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of units granted | $ / shares	$ 82.53	$ 75.28	$ 62.29
Long Term Incentive Plans [Member] | Restricted Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period for recognition of compensation cost	1 year 7 months 6 days	1 year 7 months 6 days
Weighted average grant date fair value of units granted | $ / shares	$ 98.16	$ 79.22	$ 63.42
Unrecognized compensation cost	$ 422,000,000	$ 432,000,000
Fair value of vested shares	334,000,000	209,000,000	$ 110,000,000
Management Equity Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges for plan	0	0	0
Intrinsic value of exercised options	13,000,000	12,000,000	74,000,000
Amount received on stock options exercised	7,000,000	$ 4,000,000	$ 86,000,000
Unrecognized compensation cost	$ 0
Number of vested stock options | shares	2,534,272	2,748,942
Weighted average exercise price of vested options | € / shares				€ 23.67	€ 24.14

X

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

+ References

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

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Unrecognized cost of unvested options awarded to employees as compensation.

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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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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

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X

- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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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 maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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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

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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