CONSOLIDATED AND COMBINED BALANCE SHEETS (PARENTHETICAL) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 31	$ 49
Accumulated depreciation	$ 1,028	$ 1,011
Common stock, par value (in dollars per share)	$ 0.01
Common stock, shares authorized	5,000,000,000
Common stock, shares issued	500,007,428
Common stock, shares outstanding	500,007,428