星空传媒 Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Fair Values of Pension Plan Assets) (Details)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Fair Values of Pension Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	$ 748.9	$ 687.2	$ 749.8
U.S. large-cap \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	139.1	112.6	听
U.S. small/mid-cap \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	29.3	22.5	听
International \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	161.4	132.0	听
Fixed Income Investments [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	195.3	178.5	听
Hedge Funds [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	40.2	37.2	听
Private Equity Funds [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	49.5	42.6	听
Structured Credit [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	52.3	78.8	听
Real Estate [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	70.4	70.5	听
Cash [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	11.4	12.5	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	514.2	430.7	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| U.S. large-cap \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	139.1	112.6	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| U.S. small/mid-cap \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	29.3	22.5	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| International \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	161.4	132.0	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| Fixed Income Investments [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	173.0	151.1	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| Hedge Funds [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| Private Equity Funds [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| Structured Credit [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| Real Estate [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] \| Cash [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	11.4	12.5	听
Fair Value, Inputs, Level 2 [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	22.3	27.4	听
Fair Value, Inputs, Level 2 [Member] \| U.S. large-cap \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Fair Value, Inputs, Level 2 [Member] \| U.S. small/mid-cap \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Fair Value, Inputs, Level 2 [Member] \| International \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Fair Value, Inputs, Level 2 [Member] \| Fixed Income Investments [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	22.3	27.4	听
Fair Value, Inputs, Level 2 [Member] \| Hedge Funds [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Fair Value, Inputs, Level 2 [Member] \| Private Equity Funds [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Fair Value, Inputs, Level 2 [Member] \| Structured Credit [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Fair Value, Inputs, Level 2 [Member] \| Real Estate [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Fair Value, Inputs, Level 2 [Member] \| Cash [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Significant Unobservable Inputs (Level 3) [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	212.4	229.1	215.6
Significant Unobservable Inputs (Level 3) [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	212.4	229.1	听
Significant Unobservable Inputs (Level 3) [Member] \| U.S. large-cap \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Significant Unobservable Inputs (Level 3) [Member] \| U.S. small/mid-cap \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Significant Unobservable Inputs (Level 3) [Member] \| International \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Significant Unobservable Inputs (Level 3) [Member] \| Fixed Income Investments [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	0.0	0.0	听
Significant Unobservable Inputs (Level 3) [Member] \| Hedge Funds [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	40.2	37.2	37.4
Significant Unobservable Inputs (Level 3) [Member] \| Hedge Funds [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	40.2	37.2	听
Significant Unobservable Inputs (Level 3) [Member] \| Private Equity Funds [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	49.5	42.6	39.8
Significant Unobservable Inputs (Level 3) [Member] \| Private Equity Funds [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	49.5	42.6	听
Significant Unobservable Inputs (Level 3) [Member] \| Structured Credit [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	52.3	78.8	听
Significant Unobservable Inputs (Level 3) [Member] \| Real Estate [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	70.4	70.5	$ 65.5
Significant Unobservable Inputs (Level 3) [Member] \| Real Estate [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	70.4	70.5	听
Significant Unobservable Inputs (Level 3) [Member] \| Cash [Member] \| Pension Plan [Member]	听	听	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听	听	听
Fair value of plan assets	$ 0.0	$ 0.0	听