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Share-Based Compensation
 3 Months Ended
Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
SHARE-BASED COMPENSATION
SHARE-BASED COMPENSATION
The company recognized total expenses of $49.2 million and $38.7 million related to equity-settled share-based payment transactions in the three months ended March 31, 2017 and March 31, 2016, respectively.
Share Awards
Movements on share awards during the periods ended March 31, are detailed below:
 
For the three months ended March 31, 2017
 
For the three months ended March 31, 2016
Millions of shares, except fair values
Time- Vested
 
Performance- Vested
 
Weighted Average Grant Date Fair Value ($)
 
Time- Vested
 
Performance- Vested
Unvested at the beginning of period
12.1

 
0.8

 
31.22

 
10.4

 
0.6

Granted during the period
5.1

 
0.3

 
32.19

 
6.2

 
0.4

Forfeited during the period
(0.3
)
 
—

 
31.48

 
—

 
—

Vested and distributed during the period
(4.4
)
 
(0.2
)
 
31.33

 
(4.1
)
 
(0.2
)
Unvested at the end of the period
12.5

 
0.9

 
31.57

 
12.5

 
0.8



The total fair value of shares that vested during the three months ended March 31, 2017 was $145.9 million (three months ended March 31, 2016: $115.8 million). The weighted average grant date fair value of the U.S. Dollar share awards that were granted during the three months ended March 31, 2017 was $32.19 (three months ended March 31, 2016: $27.30).
At March 31, 2017, there was $386.8 million of total unrecognized compensation cost related to non-vested share awards; that cost is expected to be recognized over a weighted average period of 2.92 years.