2013 | 2012 | 2011 | |||||||||
(in millions) | |||||||||||
Balance at beginning of period | $ | 80 | $ | 76 | $ | 82 | |||||
Increases related to prior year tax positions | 7 | 5 | 10 | ||||||||
Decreases related to prior year tax positions | (17 | ) | — | (6 | ) | ||||||
Increases related to current year tax positions | 2 | 2 | — | ||||||||
Settlements | (3 | ) | (2 | ) | — | ||||||
Lapse of statute of limitations | 9 | (2 | ) | (9 | ) | ||||||
Foreign currency translation | (2 | ) | 1 | (1 | ) | ||||||
Balance at end of period | $ | 76 | $ | 80 | $ | 76 | |||||