Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical) (Unaudited)

v2.4.1.9
Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)
In Millions, except Per Share data, unless otherwise specified
Feb. 28, 2015
May 31, 2014
Statement of Financial Position [Abstract]    
Common stock, par value $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 600.0us-gaap_CommonStockSharesAuthorized 600.0us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 363.2us-gaap_CommonStockSharesIssued 363.0us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 363.2us-gaap_CommonStockSharesOutstanding 363.0us-gaap_CommonStockSharesOutstanding