Total compensation costs related to share-based payment awards not yet recognized and the weighted-average period over which such awards are expected to be recognized at December 31, 2013 were as follows:
Restricted
Market
Long-Term
Performance
Dollars in Millions
Stock Units
Share Units
Awards
Unrecognized compensation cost
$
155
$
32
$
27
Expected weighted-average period in years of compensation cost to be recognized
