Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Numerators and Denominators of Basic and Diluted EPS Computations for Common Stock

The numerators and denominators of the basic and diluted EPS computations for our common stock are calculated as follows (in millions, except per share amounts):

	Year Ended December 31,
	2015				2014				2013
	Class A		Class B		Class A		Class B		Class A		Class B
Basic EPS:
Numerator
Net income	$	2,959	$	729	$	2,308	$	632	$	1,114	$	386
Less: Net income attributable to participating securities	15		4		12		3		7		2
Net income attributable to common stockholders	$	2,944	$	725	$	2,296	$	629	$	1,107	$	384
Denominator
Weighted average shares outstanding	2,259		559		2,059		568		1,803		631
Less: Shares subject to repurchase	10		5		6		7		5		9
Number of shares used for basic EPS computation	2,249		554		2,053		561		1,798		622
Basic EPS	$	1.31	$	1.31	$	1.12	$	1.12	$	0.62	$	0.62
Diluted EPS:
Numerator
Net income attributable to common stockholders	$	2,944	$	725	$	2,296	$	629	$	1,107	$	384
Reallocation of net income attributable to participating securities	19		—		15		—		9		—
Reallocation of net income as a result of conversion of Class B to Class A common stock	725		—		629		—		384		—
Reallocation of net income to Class B common stock	—		15		—		23		—		39
Net income attributable to common stockholders for diluted EPS	$	3,688	$	740	$	2,940	$	652	$	1,500	$	423
Denominator
Number of shares used for basic EPS computation	2,249		554		2,053		561		1,798		622
Conversion of Class B to Class A common stock	554		—		561		—		622		—
Weighted average effect of dilutive securities:
Employee stock options	8		8		13		13		65		65
RSUs	37		9		30		13		25		15
Shares subject to repurchase	5		2		7		4		7		7
Number of shares used for diluted EPS computation	2,853		573		2,664		591		2,517		709
Diluted EPS	$	1.29	$	1.29	$	1.10	$	1.10	$	0.60	$	0.60